/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_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:30:03,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:30:03,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:30:03,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:30:03,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:30:03,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:30:03,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:30:03,586 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 18:30:03,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:30:03,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:30:03,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:30:03,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:30:03,618 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:30:03,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:30:03,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:30:03,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:30:03,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:30:03,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:30:03,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:30:03,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:30:03,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:30:03,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:30:03,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:30:03,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:30:03,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:30:03,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:30:03,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:30:03,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:30:03,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:30:03,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:30:03,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:30:03,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:30:03,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:30:03,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:30:03,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:30:03,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:30:03,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:30:03,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:30:04,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:30:04,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:30:04,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:30:04,088 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:30:04,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:30:04,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-23 18:30:04,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b84a168/3ec59301d48f489e95f4157a136854da/FLAG2158120b3 [2020-10-23 18:30:05,150 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:30:05,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-10-23 18:30:05,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b84a168/3ec59301d48f489e95f4157a136854da/FLAG2158120b3 [2020-10-23 18:30:05,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b84a168/3ec59301d48f489e95f4157a136854da [2020-10-23 18:30:05,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:30:05,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:30:05,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:30:05,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:30:05,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:30:05,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:05" (1/1) ... [2020-10-23 18:30:05,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464bf060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:05, skipping insertion in model container [2020-10-23 18:30:05,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:30:05" (1/1) ... [2020-10-23 18:30:05,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:30:05,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:30:06,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:30:06,092 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:30:06,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:30:06,275 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:30:06,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06 WrapperNode [2020-10-23 18:30:06,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:30:06,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:30:06,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:30:06,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:30:06,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (1/1) ... [2020-10-23 18:30:06,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:30:06,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:30:06,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:30:06,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:30:06,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (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 18:30:06,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:30:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:30:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:30:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:30:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:30:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:30:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:30:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:30:06,544 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:30:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:30:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:30:06,545 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:30:06,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:30:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:30:06,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:30:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:30:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:30:06,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:30:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:30:08,053 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:30:08,054 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:30:08,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:08 BoogieIcfgContainer [2020-10-23 18:30:08,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:30:08,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:30:08,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:30:08,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:30:08,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:30:05" (1/3) ... [2020-10-23 18:30:08,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2870b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:08, skipping insertion in model container [2020-10-23 18:30:08,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:30:06" (2/3) ... [2020-10-23 18:30:08,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2870b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:30:08, skipping insertion in model container [2020-10-23 18:30:08,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:30:08" (3/3) ... [2020-10-23 18:30:08,068 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-10-23 18:30:08,082 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:30:08,089 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:30:08,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:30:08,141 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:30:08,141 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:30:08,142 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:30:08,142 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:30:08,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:30:08,142 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:30:08,142 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:30:08,142 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:30:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-23 18:30:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-23 18:30:08,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:08,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:08,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:08,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:08,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1519427313, now seen corresponding path program 1 times [2020-10-23 18:30:08,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:08,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930246980] [2020-10-23 18:30:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:08,895 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:30:08,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:09,049 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 18:30:09,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930246980] [2020-10-23 18:30:09,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:30:09,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:30:09,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917612691] [2020-10-23 18:30:09,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:30:09,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:09,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:30:09,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:30:09,081 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-23 18:30:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:11,022 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-23 18:30:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:30:11,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-23 18:30:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:11,042 INFO L225 Difference]: With dead ends: 562 [2020-10-23 18:30:11,042 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 18:30:11,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:30:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 18:30:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-23 18:30:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-23 18:30:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 403 transitions. [2020-10-23 18:30:11,138 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 403 transitions. Word has length 120 [2020-10-23 18:30:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:11,139 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 403 transitions. [2020-10-23 18:30:11,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:30:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 403 transitions. [2020-10-23 18:30:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-23 18:30:11,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:11,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:11,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:30:11,146 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1624468203, now seen corresponding path program 1 times [2020-10-23 18:30:11,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:11,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057841976] [2020-10-23 18:30:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:11,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:11,488 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 18:30:11,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057841976] [2020-10-23 18:30:11,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:30:11,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:30:11,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423183651] [2020-10-23 18:30:11,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:30:11,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:11,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:30:11,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:30:11,494 INFO L87 Difference]: Start difference. First operand 281 states and 403 transitions. Second operand 8 states. [2020-10-23 18:30:11,627 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:30:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:13,435 INFO L93 Difference]: Finished difference Result 715 states and 1051 transitions. [2020-10-23 18:30:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 18:30:13,442 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-10-23 18:30:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:13,449 INFO L225 Difference]: With dead ends: 715 [2020-10-23 18:30:13,449 INFO L226 Difference]: Without dead ends: 440 [2020-10-23 18:30:13,451 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 18:30:13,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-23 18:30:13,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 422. [2020-10-23 18:30:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-23 18:30:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 591 transitions. [2020-10-23 18:30:13,512 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 591 transitions. Word has length 130 [2020-10-23 18:30:13,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:13,513 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 591 transitions. [2020-10-23 18:30:13,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:30:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 591 transitions. [2020-10-23 18:30:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-23 18:30:13,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:13,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:13,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:30:13,518 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:13,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:13,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1378538514, now seen corresponding path program 1 times [2020-10-23 18:30:13,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:13,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134764642] [2020-10-23 18:30:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:13,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:13,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:14,132 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 18:30:14,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134764642] [2020-10-23 18:30:14,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875679233] [2020-10-23 18:30:14,142 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 18:30:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:14,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:30:14,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:14,511 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 18:30:14,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:30:14,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-10-23 18:30:14,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294667063] [2020-10-23 18:30:14,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:30:14,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:14,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:30:14,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:30:14,515 INFO L87 Difference]: Start difference. First operand 422 states and 591 transitions. Second operand 3 states. [2020-10-23 18:30:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:15,174 INFO L93 Difference]: Finished difference Result 1249 states and 1789 transitions. [2020-10-23 18:30:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:30:15,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-10-23 18:30:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:15,183 INFO L225 Difference]: With dead ends: 1249 [2020-10-23 18:30:15,183 INFO L226 Difference]: Without dead ends: 833 [2020-10-23 18:30:15,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:30:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-23 18:30:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2020-10-23 18:30:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-10-23 18:30:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1165 transitions. [2020-10-23 18:30:15,301 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1165 transitions. Word has length 131 [2020-10-23 18:30:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:15,303 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1165 transitions. [2020-10-23 18:30:15,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:30:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1165 transitions. [2020-10-23 18:30:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-23 18:30:15,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:15,322 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:15,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:30:15,538 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:15,539 INFO L82 PathProgramCache]: Analyzing trace with hash -81517374, now seen corresponding path program 1 times [2020-10-23 18:30:15,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:15,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614178685] [2020-10-23 18:30:15,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:15,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:15,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:30:15,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614178685] [2020-10-23 18:30:15,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:30:15,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:30:15,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762575051] [2020-10-23 18:30:15,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:30:15,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:15,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:30:15,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:30:15,991 INFO L87 Difference]: Start difference. First operand 833 states and 1165 transitions. Second operand 8 states. [2020-10-23 18:30:16,140 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:30:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:18,670 INFO L93 Difference]: Finished difference Result 2246 states and 3243 transitions. [2020-10-23 18:30:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:30:18,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 137 [2020-10-23 18:30:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:18,692 INFO L225 Difference]: With dead ends: 2246 [2020-10-23 18:30:18,692 INFO L226 Difference]: Without dead ends: 1419 [2020-10-23 18:30:18,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:30:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-10-23 18:30:18,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1131. [2020-10-23 18:30:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-10-23 18:30:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1525 transitions. [2020-10-23 18:30:18,820 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1525 transitions. Word has length 137 [2020-10-23 18:30:18,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:18,821 INFO L481 AbstractCegarLoop]: Abstraction has 1131 states and 1525 transitions. [2020-10-23 18:30:18,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:30:18,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1525 transitions. [2020-10-23 18:30:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 18:30:18,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:18,836 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:18,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 18:30:18,836 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:18,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:18,837 INFO L82 PathProgramCache]: Analyzing trace with hash 607490405, now seen corresponding path program 1 times [2020-10-23 18:30:18,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:18,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404027505] [2020-10-23 18:30:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:18,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:19,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:30:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:30:19,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404027505] [2020-10-23 18:30:19,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164559026] [2020-10-23 18:30:19,103 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 18:30:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:19,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:30:19,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 18:30:19,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:30:19,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:30:19,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976650083] [2020-10-23 18:30:19,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:30:19,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:19,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:30:19,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:30:19,378 INFO L87 Difference]: Start difference. First operand 1131 states and 1525 transitions. Second operand 3 states. [2020-10-23 18:30:20,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:20,062 INFO L93 Difference]: Finished difference Result 2532 states and 3500 transitions. [2020-10-23 18:30:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:30:20,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 18:30:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:20,073 INFO L225 Difference]: With dead ends: 2532 [2020-10-23 18:30:20,073 INFO L226 Difference]: Without dead ends: 1407 [2020-10-23 18:30:20,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:30:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2020-10-23 18:30:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1407. [2020-10-23 18:30:20,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1407 states. [2020-10-23 18:30:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1900 transitions. [2020-10-23 18:30:20,147 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1900 transitions. Word has length 148 [2020-10-23 18:30:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:20,148 INFO L481 AbstractCegarLoop]: Abstraction has 1407 states and 1900 transitions. [2020-10-23 18:30:20,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:30:20,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1900 transitions. [2020-10-23 18:30:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 18:30:20,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:20,154 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:20,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:20,368 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:20,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:20,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1667456653, now seen corresponding path program 1 times [2020-10-23 18:30:20,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:20,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134197864] [2020-10-23 18:30:20,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:20,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:20,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:30:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:30:20,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134197864] [2020-10-23 18:30:20,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395757337] [2020-10-23 18:30:20,619 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 18:30:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:20,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:30:20,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:30:20,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:30:20,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:30:20,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428630298] [2020-10-23 18:30:20,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:30:20,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:20,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:30:20,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:30:20,823 INFO L87 Difference]: Start difference. First operand 1407 states and 1900 transitions. Second operand 10 states. [2020-10-23 18:30:23,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:23,961 INFO L93 Difference]: Finished difference Result 3383 states and 5210 transitions. [2020-10-23 18:30:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 18:30:23,964 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-23 18:30:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:23,985 INFO L225 Difference]: With dead ends: 3383 [2020-10-23 18:30:23,985 INFO L226 Difference]: Without dead ends: 1982 [2020-10-23 18:30:23,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:30:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-10-23 18:30:24,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1904. [2020-10-23 18:30:24,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2020-10-23 18:30:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2660 transitions. [2020-10-23 18:30:24,147 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2660 transitions. Word has length 160 [2020-10-23 18:30:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:24,148 INFO L481 AbstractCegarLoop]: Abstraction has 1904 states and 2660 transitions. [2020-10-23 18:30:24,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:30:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2660 transitions. [2020-10-23 18:30:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 18:30:24,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:24,160 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:24,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:24,376 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:24,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:24,377 INFO L82 PathProgramCache]: Analyzing trace with hash 187841490, now seen corresponding path program 1 times [2020-10-23 18:30:24,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:24,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544286515] [2020-10-23 18:30:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:30:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 18:30:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 18:30:24,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544286515] [2020-10-23 18:30:24,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511309924] [2020-10-23 18:30:24,635 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 18:30:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:24,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:30:24,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 46 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 18:30:24,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:30:24,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2020-10-23 18:30:24,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261026555] [2020-10-23 18:30:24,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:30:24,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:24,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:30:24,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:30:24,902 INFO L87 Difference]: Start difference. First operand 1904 states and 2660 transitions. Second operand 10 states. [2020-10-23 18:30:25,035 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:30:25,669 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-23 18:30:26,393 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-23 18:30:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:28,919 INFO L93 Difference]: Finished difference Result 4512 states and 6784 transitions. [2020-10-23 18:30:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 18:30:28,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-10-23 18:30:28,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:28,943 INFO L225 Difference]: With dead ends: 4512 [2020-10-23 18:30:28,944 INFO L226 Difference]: Without dead ends: 2618 [2020-10-23 18:30:28,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2020-10-23 18:30:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2020-10-23 18:30:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2349. [2020-10-23 18:30:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-10-23 18:30:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3133 transitions. [2020-10-23 18:30:29,110 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3133 transitions. Word has length 175 [2020-10-23 18:30:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:29,111 INFO L481 AbstractCegarLoop]: Abstraction has 2349 states and 3133 transitions. [2020-10-23 18:30:29,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:30:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3133 transitions. [2020-10-23 18:30:29,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-23 18:30:29,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:29,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:30:29,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:29,340 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:29,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:29,341 INFO L82 PathProgramCache]: Analyzing trace with hash 506591341, now seen corresponding path program 1 times [2020-10-23 18:30:29,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:29,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203450281] [2020-10-23 18:30:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:29,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:29,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:29,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-23 18:30:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:30:29,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203450281] [2020-10-23 18:30:29,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942241650] [2020-10-23 18:30:29,620 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 18:30:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:29,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:30:29,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-23 18:30:29,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:30:29,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:30:29,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55328225] [2020-10-23 18:30:29,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:30:29,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:29,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:30:29,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:30:29,839 INFO L87 Difference]: Start difference. First operand 2349 states and 3133 transitions. Second operand 3 states. [2020-10-23 18:30:30,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:30,528 INFO L93 Difference]: Finished difference Result 6126 states and 8139 transitions. [2020-10-23 18:30:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:30:30,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-10-23 18:30:30,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:30,559 INFO L225 Difference]: With dead ends: 6126 [2020-10-23 18:30:30,559 INFO L226 Difference]: Without dead ends: 3787 [2020-10-23 18:30:30,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 194 SyntacticMatches, 1 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 18:30:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2020-10-23 18:30:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 3499. [2020-10-23 18:30:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3499 states. [2020-10-23 18:30:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 4619 transitions. [2020-10-23 18:30:30,782 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 4619 transitions. Word has length 192 [2020-10-23 18:30:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:30,783 INFO L481 AbstractCegarLoop]: Abstraction has 3499 states and 4619 transitions. [2020-10-23 18:30:30,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:30:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 4619 transitions. [2020-10-23 18:30:30,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-23 18:30:30,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:30,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:30:31,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:31,023 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:31,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:31,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1257418459, now seen corresponding path program 1 times [2020-10-23 18:30:31,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:31,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058717400] [2020-10-23 18:30:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:30:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-23 18:30:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 88 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-23 18:30:31,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058717400] [2020-10-23 18:30:31,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76580520] [2020-10-23 18:30:31,356 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 18:30:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:31,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:30:31,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-23 18:30:31,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:30:31,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:30:31,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853372662] [2020-10-23 18:30:31,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:30:31,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:31,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:30:31,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:30:31,587 INFO L87 Difference]: Start difference. First operand 3499 states and 4619 transitions. Second operand 10 states. [2020-10-23 18:30:31,726 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:30:32,058 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-23 18:30:33,599 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2020-10-23 18:30:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:36,317 INFO L93 Difference]: Finished difference Result 8900 states and 11585 transitions. [2020-10-23 18:30:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 18:30:36,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-10-23 18:30:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:36,345 INFO L225 Difference]: With dead ends: 8900 [2020-10-23 18:30:36,345 INFO L226 Difference]: Without dead ends: 4811 [2020-10-23 18:30:36,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2020-10-23 18:30:36,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2020-10-23 18:30:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4626. [2020-10-23 18:30:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4626 states. [2020-10-23 18:30:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 5378 transitions. [2020-10-23 18:30:36,522 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 5378 transitions. Word has length 208 [2020-10-23 18:30:36,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:36,522 INFO L481 AbstractCegarLoop]: Abstraction has 4626 states and 5378 transitions. [2020-10-23 18:30:36,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:30:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 5378 transitions. [2020-10-23 18:30:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-23 18:30:36,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:30:36,538 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:30:36,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:30:36,752 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:30:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:30:36,753 INFO L82 PathProgramCache]: Analyzing trace with hash 69169815, now seen corresponding path program 1 times [2020-10-23 18:30:36,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:30:36,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852960634] [2020-10-23 18:30:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:30:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:30:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:30:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:30:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 18:30:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-23 18:30:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:36,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-23 18:30:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 144 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-23 18:30:37,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852960634] [2020-10-23 18:30:37,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485436838] [2020-10-23 18:30:37,055 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 18:30:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:30:37,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:30:37,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:30:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-23 18:30:37,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:30:37,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-10-23 18:30:37,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614384135] [2020-10-23 18:30:37,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:30:37,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:30:37,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:30:37,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:30:37,345 INFO L87 Difference]: Start difference. First operand 4626 states and 5378 transitions. Second operand 11 states. [2020-10-23 18:30:38,378 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-23 18:30:38,693 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-23 18:30:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:30:40,279 INFO L93 Difference]: Finished difference Result 8318 states and 9921 transitions. [2020-10-23 18:30:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 18:30:40,279 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2020-10-23 18:30:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:30:40,281 INFO L225 Difference]: With dead ends: 8318 [2020-10-23 18:30:40,281 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:30:40,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-10-23 18:30:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:30:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:30:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:30:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:30:40,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-10-23 18:30:40,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:30:40,306 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:30:40,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:30:40,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:30:40,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:30:40,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:30:40,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:30:41,866 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 132 [2020-10-23 18:30:42,350 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 132 [2020-10-23 18:30:42,577 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2020-10-23 18:30:44,159 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-10-23 18:30:44,715 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 57 [2020-10-23 18:30:45,390 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 57 [2020-10-23 18:30:45,725 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2020-10-23 18:30:45,729 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:30:45,730 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:30:45,730 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:30:45,730 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:30:45,730 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:30:45,731 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|) (= |#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)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,731 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-23 18:30:45,732 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,733 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-23 18:30:45,734 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-23 18:30:45,735 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-23 18:30:45,736 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-23 18:30:45,737 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,738 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-23 18:30:45,739 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,740 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-23 18:30:45,741 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-23 18:30:45,742 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-23 18:30:45,743 INFO L270 CegarLoopResult]: At program point L517(line 517) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= |old(~a21~0)| 1))) (.cse2 (not (<= 5 |old(~a16~0)|))) (.cse6 (not (= |old(~a17~0)| 1))) (.cse3 (not (<= |old(~a21~0)| 0))) (.cse10 (not (<= |old(~a16~0)| 5))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse7 (not (= |old(~a20~0)| 1))) (.cse9 (not (<= 14 |old(~a8~0)|))) (.cse4 (not (= |old(~a7~0)| 1))) (.cse1 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse2 .cse0 .cse7 .cse8) (or .cse3 .cse4 .cse1) (or .cse2 .cse9 .cse0) (or .cse6 .cse10 .cse5 .cse7 .cse8 .cse1) (or .cse2 .cse9 .cse10 .cse4) (or .cse6 .cse10 .cse4 .cse7 .cse1) (or .cse6 .cse3 .cse10 .cse4 .cse5 .cse7) (or .cse9 .cse4 .cse1))) [2020-10-23 18:30:45,743 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-23 18:30:45,743 INFO L274 CegarLoopResult]: For program point L517-1(line 517) no Hoare annotation was computed. [2020-10-23 18:30:45,743 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-23 18:30:45,743 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-23 18:30:45,743 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,744 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,745 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse17 (= ~a16~0 4)) (.cse12 (= ~a7~0 |old(~a7~0)|)) (.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 |old(~a21~0)|)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse19 (= ~a16~0 |old(~a16~0)|)) (.cse16 (= ~a8~0 |old(~a8~0)|))) (let ((.cse1 (not (<= 14 |old(~a8~0)|))) (.cse4 (and .cse12 .cse13 .cse20 .cse15 .cse19 .cse16)) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse10 (not (<= |old(~a8~0)| 13))) (.cse9 (not (<= |old(~a21~0)| 0))) (.cse3 (not (= |old(~a7~0)| 1))) (.cse5 (and .cse12 .cse13 .cse20 .cse15 .cse16 .cse17)) (.cse6 (not (= 4 |old(~a16~0)|))) (.cse7 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse11 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= |old(~a20~0)| 1))) (.cse14 (= ~a21~0 1)) (.cse18 (not (= |old(~a21~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse2 .cse3 .cse8 .cse5 .cse6) (or .cse0 .cse9 .cse3 .cse10 .cse4) (or .cse0 .cse1 .cse11 .cse4) (or .cse7 .cse9 .cse2 .cse3 .cse10 .cse8 .cse4) (or .cse11 .cse5 .cse6) (or .cse7 (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) .cse2 .cse10 .cse8 .cse18 .cse6) (or .cse9 .cse3 .cse5 .cse6) (or .cse7 .cse0 .cse11 .cse8 (and .cse12 .cse13 .cse14 .cse15 .cse19 .cse16) .cse18)))) [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-23 18:30:45,746 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-23 18:30:45,747 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-23 18:30:45,748 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-23 18:30:45,749 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-23 18:30:45,750 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-23 18:30:45,751 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-23 18:30:45,751 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:30:45,751 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (= ~a20~0 1) (<= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-23 18:30:45,751 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:30:45,751 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:30:45,751 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)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= |old(~a21~0)| 1))) [2020-10-23 18:30:45,751 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:30:45,752 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse5 (<= 14 ~a8~0)) (.cse3 (<= 5 ~a16~0)) (.cse1 (<= ~a7~0 0)) (.cse7 (= ~a16~0 4)) (.cse6 (= ~a7~0 1)) (.cse8 (<= ~a21~0 0)) (.cse2 (= ~a20~0 1)) (.cse4 (= ~a17~0 1)) (.cse9 (<= ~a8~0 13))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse6 (<= ~a16~0 5) .cse3) (and .cse6 .cse8 .cse3 .cse9) (not (= |old(~a20~0)| 1)) (and .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse9) (not (= |old(~a21~0)| 1)) (and .cse5 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (and .cse1 .cse7) (and .cse6 .cse8 .cse7) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse8 .cse2 .cse4 .cse9))) [2020-10-23 18:30:45,752 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-23 18:30:45,752 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-23 18:30:45,752 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse5 (<= 14 ~a8~0)) (.cse3 (<= 5 ~a16~0)) (.cse1 (<= ~a7~0 0)) (.cse7 (= ~a16~0 4)) (.cse6 (= ~a7~0 1)) (.cse8 (<= ~a21~0 0)) (.cse2 (= ~a20~0 1)) (.cse4 (= ~a17~0 1)) (.cse9 (<= ~a8~0 13))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7) (not (<= |old(~a7~0)| 0)) (and .cse5 .cse6 (<= ~a16~0 5) .cse3) (and .cse6 .cse8 .cse3 .cse9) (not (= |old(~a20~0)| 1)) (and .cse6 .cse2 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse9) (not (= |old(~a21~0)| 1)) (and .cse5 .cse1 .cse3) (not (= |old(~a17~0)| 1)) (and .cse1 .cse7) (and .cse6 .cse8 .cse7) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse6 .cse8 .cse2 .cse4 .cse9))) [2020-10-23 18:30:45,752 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:30:45,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:30:45 BoogieIcfgContainer [2020-10-23 18:30:45,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:30:45,779 INFO L168 Benchmark]: Toolchain (without parser) took 40433.33 ms. Allocated memory was 169.9 MB in the beginning and 614.5 MB in the end (delta: 444.6 MB). Free memory was 143.3 MB in the beginning and 419.7 MB in the end (delta: -276.4 MB). Peak memory consumption was 366.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:45,780 INFO L168 Benchmark]: CDTParser took 1.69 ms. Allocated memory is still 125.8 MB. Free memory is still 81.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:30:45,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.75 ms. Allocated memory is still 169.9 MB. Free memory was 142.7 MB in the beginning and 145.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:45,781 INFO L168 Benchmark]: Boogie Preprocessor took 162.14 ms. Allocated memory is still 169.9 MB. Free memory was 145.3 MB in the beginning and 140.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:45,782 INFO L168 Benchmark]: RCFGBuilder took 1615.78 ms. Allocated memory is still 169.9 MB. Free memory was 140.2 MB in the beginning and 133.1 MB in the end (delta: 7.1 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:45,782 INFO L168 Benchmark]: TraceAbstraction took 37718.69 ms. Allocated memory was 169.9 MB in the beginning and 614.5 MB in the end (delta: 444.6 MB). Free memory was 133.1 MB in the beginning and 419.7 MB in the end (delta: -286.6 MB). Peak memory consumption was 354.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:30:45,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.69 ms. Allocated memory is still 125.8 MB. Free memory is still 81.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 924.75 ms. Allocated memory is still 169.9 MB. Free memory was 142.7 MB in the beginning and 145.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 162.14 ms. Allocated memory is still 169.9 MB. Free memory was 145.3 MB in the beginning and 140.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1615.78 ms. Allocated memory is still 169.9 MB. Free memory was 140.2 MB in the beginning and 133.1 MB in the end (delta: 7.1 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 37718.69 ms. Allocated memory was 169.9 MB in the beginning and 614.5 MB in the end (delta: 444.6 MB). Free memory was 133.1 MB in the beginning and 419.7 MB in the end (delta: -286.6 MB). Peak memory consumption was 354.7 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 && a7 <= 0) && a20 == 1) && 5 <= a16) && a17 == 1)) || ((14 <= a8 && a7 == 1) && a16 == 4)) || !(\old(a7) <= 0)) || (((14 <= a8 && a7 == 1) && a16 <= 5) && 5 <= a16)) || (((a7 == 1 && a21 <= 0) && 5 <= a16) && a8 <= 13)) || !(\old(a20) == 1)) || (((a7 == 1 && a20 == 1) && a16 == 4) && a17 == 1)) || ((((a21 == 1 && a20 == 1) && a16 == 4) && a17 == 1) && a8 <= 13)) || !(\old(a21) == 1)) || ((14 <= a8 && a7 <= 0) && 5 <= a16)) || !(\old(a17) == 1)) || (a7 <= 0 && a16 == 4)) || ((a7 == 1 && a21 <= 0) && a16 == 4)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || ((((a7 == 1 && a21 <= 0) && a20 == 1) && a17 == 1) && a8 <= 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.3s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 365 SDtfs, 5829 SDslu, 535 SDs, 0 SdLazy, 10718 SolverSat, 2055 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1479 GetRequests, 1340 SyntacticMatches, 4 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4626occurred in iteration=9, 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, 10 MinimizatonAttempts, 1132 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 440 PreInvPairs, 540 NumberOfFragments, 1006 HoareAnnotationTreeSize, 440 FomulaSimplifications, 233625 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12434 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2895 NumberOfCodeBlocks, 2895 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2878 ConstructedInterpolants, 0 QuantifiedInterpolants, 1404424 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3924 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 1135/1249 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...