/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:34:38,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:34:38,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:34:39,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:34:39,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:34:39,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:34:39,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:34:39,119 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 18:34:39,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:34:39,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:34:39,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:34:39,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:34:39,190 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:34:39,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:34:39,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:34:39,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:34:39,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:34:39,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:34:39,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:34:39,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:34:39,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:34:39,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:34:39,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:34:39,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:34:39,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:34:39,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:34:39,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:34:39,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:34:39,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:34:39,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:34:39,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:34:39,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:34:39,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:34:39,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:34:39,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:34:39,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:34:39,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:34:39,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:34:39,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:34:39,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:34:39,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:34:39,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:34:39,695 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:34:39,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-10-23 18:34:39,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8326c35e/2efd3e41bdd94a66bdd5657171f36ccd/FLAGa2d8a5380 [2020-10-23 18:34:40,616 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:34:40,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-10-23 18:34:40,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8326c35e/2efd3e41bdd94a66bdd5657171f36ccd/FLAGa2d8a5380 [2020-10-23 18:34:40,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8326c35e/2efd3e41bdd94a66bdd5657171f36ccd [2020-10-23 18:34:40,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:34:40,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:34:40,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:34:40,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:34:40,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:34:40,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:34:40" (1/1) ... [2020-10-23 18:34:40,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1290a604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:40, skipping insertion in model container [2020-10-23 18:34:40,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:34:40" (1/1) ... [2020-10-23 18:34:40,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:34:40,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:34:41,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:34:41,475 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:34:41,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:34:41,710 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:34:41,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41 WrapperNode [2020-10-23 18:34:41,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:34:41,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:34:41,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:34:41,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:34:41,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (1/1) ... [2020-10-23 18:34:41,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:34:41,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:34:41,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:34:41,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:34:41,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (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 18:34:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:34:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:34:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:34:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:34:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:34:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:34:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:34:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:34:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:34:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:34:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:34:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:34:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:34:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:34:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:34:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:34:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:34:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:34:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:34:43,356 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:34:43,356 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:34:43,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:34:43 BoogieIcfgContainer [2020-10-23 18:34:43,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:34:43,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:34:43,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:34:43,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:34:43,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:34:40" (1/3) ... [2020-10-23 18:34:43,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:34:43, skipping insertion in model container [2020-10-23 18:34:43,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:34:41" (2/3) ... [2020-10-23 18:34:43,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:34:43, skipping insertion in model container [2020-10-23 18:34:43,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:34:43" (3/3) ... [2020-10-23 18:34:43,369 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-10-23 18:34:43,383 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:34:43,388 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:34:43,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:34:43,438 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:34:43,438 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:34:43,438 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:34:43,438 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:34:43,439 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:34:43,439 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:34:43,439 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:34:43,439 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:34:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-23 18:34:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-23 18:34:43,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:43,478 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] [2020-10-23 18:34:43,479 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:43,486 INFO L82 PathProgramCache]: Analyzing trace with hash -661183459, now seen corresponding path program 1 times [2020-10-23 18:34:43,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:43,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842240369] [2020-10-23 18:34:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:44,115 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:34:44,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:44,209 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 18:34:44,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842240369] [2020-10-23 18:34:44,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:34:44,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:34:44,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631306818] [2020-10-23 18:34:44,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:34:44,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:44,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:34:44,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:34:44,237 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-23 18:34:44,408 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-23 18:34:46,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:46,569 INFO L93 Difference]: Finished difference Result 654 states and 1108 transitions. [2020-10-23 18:34:46,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:34:46,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2020-10-23 18:34:46,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:46,588 INFO L225 Difference]: With dead ends: 654 [2020-10-23 18:34:46,588 INFO L226 Difference]: Without dead ends: 340 [2020-10-23 18:34:46,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:34:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-10-23 18:34:46,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 329. [2020-10-23 18:34:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-10-23 18:34:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 472 transitions. [2020-10-23 18:34:46,707 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 472 transitions. Word has length 107 [2020-10-23 18:34:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:46,710 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 472 transitions. [2020-10-23 18:34:46,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:34:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 472 transitions. [2020-10-23 18:34:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-23 18:34:46,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:46,732 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:34:46,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:34:46,733 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:46,734 INFO L82 PathProgramCache]: Analyzing trace with hash -211620175, now seen corresponding path program 1 times [2020-10-23 18:34:46,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:46,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124072864] [2020-10-23 18:34:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:47,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:47,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:47,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124072864] [2020-10-23 18:34:47,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:34:47,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:34:47,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751354209] [2020-10-23 18:34:47,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:34:47,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:47,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:34:47,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:47,132 INFO L87 Difference]: Start difference. First operand 329 states and 472 transitions. Second operand 8 states. [2020-10-23 18:34:47,676 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-23 18:34:48,413 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:50,862 INFO L93 Difference]: Finished difference Result 1270 states and 1899 transitions. [2020-10-23 18:34:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 18:34:50,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-10-23 18:34:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:50,875 INFO L225 Difference]: With dead ends: 1270 [2020-10-23 18:34:50,875 INFO L226 Difference]: Without dead ends: 947 [2020-10-23 18:34:50,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:34:50,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-23 18:34:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 928. [2020-10-23 18:34:50,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-10-23 18:34:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1251 transitions. [2020-10-23 18:34:50,985 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1251 transitions. Word has length 119 [2020-10-23 18:34:50,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:50,987 INFO L481 AbstractCegarLoop]: Abstraction has 928 states and 1251 transitions. [2020-10-23 18:34:50,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:34:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1251 transitions. [2020-10-23 18:34:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-23 18:34:50,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:50,995 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 18:34:50,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:34:50,996 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:50,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1463037338, now seen corresponding path program 1 times [2020-10-23 18:34:50,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:51,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517434348] [2020-10-23 18:34:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:51,389 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 18:34:51,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:51,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:34:51,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517434348] [2020-10-23 18:34:51,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818814504] [2020-10-23 18:34:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:51,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:34:51,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-23 18:34:51,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:34:51,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2020-10-23 18:34:51,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840109344] [2020-10-23 18:34:51,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 18:34:51,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:51,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 18:34:51,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:34:51,918 INFO L87 Difference]: Start difference. First operand 928 states and 1251 transitions. Second operand 7 states. [2020-10-23 18:34:52,080 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:52,578 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-23 18:34:56,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:56,069 INFO L93 Difference]: Finished difference Result 3708 states and 5429 transitions. [2020-10-23 18:34:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 18:34:56,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-23 18:34:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:56,107 INFO L225 Difference]: With dead ends: 3708 [2020-10-23 18:34:56,107 INFO L226 Difference]: Without dead ends: 2786 [2020-10-23 18:34:56,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:34:56,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2020-10-23 18:34:56,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2591. [2020-10-23 18:34:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2591 states. [2020-10-23 18:34:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3440 transitions. [2020-10-23 18:34:56,294 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3440 transitions. Word has length 120 [2020-10-23 18:34:56,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:56,297 INFO L481 AbstractCegarLoop]: Abstraction has 2591 states and 3440 transitions. [2020-10-23 18:34:56,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 18:34:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3440 transitions. [2020-10-23 18:34:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-23 18:34:56,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:56,308 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-23 18:34:56,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:34:56,522 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:56,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1485822054, now seen corresponding path program 1 times [2020-10-23 18:34:56,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:56,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190821702] [2020-10-23 18:34:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:56,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:56,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:34:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:34:56,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190821702] [2020-10-23 18:34:56,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858043605] [2020-10-23 18:34:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:56,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:34:56,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:34:57,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:34:57,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-10-23 18:34:57,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620312265] [2020-10-23 18:34:57,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:34:57,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:57,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:34:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:57,024 INFO L87 Difference]: Start difference. First operand 2591 states and 3440 transitions. Second operand 3 states. [2020-10-23 18:34:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:34:57,871 INFO L93 Difference]: Finished difference Result 5908 states and 8015 transitions. [2020-10-23 18:34:57,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:34:57,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-10-23 18:34:57,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:34:57,903 INFO L225 Difference]: With dead ends: 5908 [2020-10-23 18:34:57,903 INFO L226 Difference]: Without dead ends: 3323 [2020-10-23 18:34:57,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2020-10-23 18:34:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3323. [2020-10-23 18:34:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3323 states. [2020-10-23 18:34:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4050 transitions. [2020-10-23 18:34:58,097 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4050 transitions. Word has length 130 [2020-10-23 18:34:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:34:58,099 INFO L481 AbstractCegarLoop]: Abstraction has 3323 states and 4050 transitions. [2020-10-23 18:34:58,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:34:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4050 transitions. [2020-10-23 18:34:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-23 18:34:58,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:34:58,110 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:34:58,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:58,326 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:34:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:34:58,326 INFO L82 PathProgramCache]: Analyzing trace with hash 122695612, now seen corresponding path program 1 times [2020-10-23 18:34:58,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:34:58,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194235453] [2020-10-23 18:34:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:34:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:34:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:58,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:34:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:34:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:34:58,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194235453] [2020-10-23 18:34:58,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244793655] [2020-10-23 18:34:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:34:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:34:58,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-23 18:34:58,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:34:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-23 18:34:58,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:34:58,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2020-10-23 18:34:58,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667166628] [2020-10-23 18:34:58,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:34:58,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:34:58,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:34:58,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:34:58,818 INFO L87 Difference]: Start difference. First operand 3323 states and 4050 transitions. Second operand 5 states. [2020-10-23 18:35:00,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:00,102 INFO L93 Difference]: Finished difference Result 8365 states and 10729 transitions. [2020-10-23 18:35:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:35:00,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-23 18:35:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:00,139 INFO L225 Difference]: With dead ends: 8365 [2020-10-23 18:35:00,140 INFO L226 Difference]: Without dead ends: 4894 [2020-10-23 18:35:00,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:00,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2020-10-23 18:35:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4806. [2020-10-23 18:35:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4806 states. [2020-10-23 18:35:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 5719 transitions. [2020-10-23 18:35:00,354 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 5719 transitions. Word has length 142 [2020-10-23 18:35:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:00,355 INFO L481 AbstractCegarLoop]: Abstraction has 4806 states and 5719 transitions. [2020-10-23 18:35:00,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:35:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 5719 transitions. [2020-10-23 18:35:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-23 18:35:00,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:00,369 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:35:00,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:00,584 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:00,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:00,585 INFO L82 PathProgramCache]: Analyzing trace with hash -981536840, now seen corresponding path program 1 times [2020-10-23 18:35:00,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:00,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813443202] [2020-10-23 18:35:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-23 18:35:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-23 18:35:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 18:35:00,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813443202] [2020-10-23 18:35:00,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517268054] [2020-10-23 18:35:00,898 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 18:35:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:01,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:01,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-23 18:35:01,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:01,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-10-23 18:35:01,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117865253] [2020-10-23 18:35:01,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:35:01,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:01,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:35:01,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:35:01,156 INFO L87 Difference]: Start difference. First operand 4806 states and 5719 transitions. Second operand 10 states. [2020-10-23 18:35:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:03,307 INFO L93 Difference]: Finished difference Result 9492 states and 11327 transitions. [2020-10-23 18:35:03,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:35:03,308 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-10-23 18:35:03,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:03,331 INFO L225 Difference]: With dead ends: 9492 [2020-10-23 18:35:03,331 INFO L226 Difference]: Without dead ends: 3781 [2020-10-23 18:35:03,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-23 18:35:03,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3781 states. [2020-10-23 18:35:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3781 to 3769. [2020-10-23 18:35:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3769 states. [2020-10-23 18:35:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 4292 transitions. [2020-10-23 18:35:03,558 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 4292 transitions. Word has length 165 [2020-10-23 18:35:03,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:03,558 INFO L481 AbstractCegarLoop]: Abstraction has 3769 states and 4292 transitions. [2020-10-23 18:35:03,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:35:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 4292 transitions. [2020-10-23 18:35:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 18:35:03,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:03,569 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 18:35:03,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:03,784 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:03,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1794508454, now seen corresponding path program 1 times [2020-10-23 18:35:03,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:03,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232780771] [2020-10-23 18:35:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:03,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:35:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-23 18:35:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 87 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-23 18:35:04,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232780771] [2020-10-23 18:35:04,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125503429] [2020-10-23 18:35:04,128 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 18:35:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:04,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:04,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:35:04,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:04,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:35:04,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049061396] [2020-10-23 18:35:04,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:35:04,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:04,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:35:04,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:35:04,394 INFO L87 Difference]: Start difference. First operand 3769 states and 4292 transitions. Second operand 11 states. [2020-10-23 18:35:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:06,494 INFO L93 Difference]: Finished difference Result 7081 states and 8221 transitions. [2020-10-23 18:35:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:35:06,495 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-10-23 18:35:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:06,512 INFO L225 Difference]: With dead ends: 7081 [2020-10-23 18:35:06,513 INFO L226 Difference]: Without dead ends: 3012 [2020-10-23 18:35:06,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-10-23 18:35:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2020-10-23 18:35:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2832. [2020-10-23 18:35:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2832 states. [2020-10-23 18:35:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3086 transitions. [2020-10-23 18:35:06,617 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3086 transitions. Word has length 178 [2020-10-23 18:35:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:06,617 INFO L481 AbstractCegarLoop]: Abstraction has 2832 states and 3086 transitions. [2020-10-23 18:35:06,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:35:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3086 transitions. [2020-10-23 18:35:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-23 18:35:06,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:06,626 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-23 18:35:06,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-23 18:35:06,864 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:06,866 INFO L82 PathProgramCache]: Analyzing trace with hash -270449495, now seen corresponding path program 1 times [2020-10-23 18:35:06,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:06,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079967455] [2020-10-23 18:35:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:07,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:07,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 74 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-23 18:35:07,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079967455] [2020-10-23 18:35:07,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212073790] [2020-10-23 18:35:07,491 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 18:35:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:07,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:07,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-23 18:35:07,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:35:07,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-10-23 18:35:07,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967741570] [2020-10-23 18:35:07,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:35:07,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:07,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:35:07,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:07,718 INFO L87 Difference]: Start difference. First operand 2832 states and 3086 transitions. Second operand 3 states. [2020-10-23 18:35:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:08,371 INFO L93 Difference]: Finished difference Result 6096 states and 6727 transitions. [2020-10-23 18:35:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:35:08,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-23 18:35:08,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:08,390 INFO L225 Difference]: With dead ends: 6096 [2020-10-23 18:35:08,390 INFO L226 Difference]: Without dead ends: 3414 [2020-10-23 18:35:08,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:35:08,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2020-10-23 18:35:08,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3268. [2020-10-23 18:35:08,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3268 states. [2020-10-23 18:35:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 3557 transitions. [2020-10-23 18:35:08,505 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 3557 transitions. Word has length 189 [2020-10-23 18:35:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:08,506 INFO L481 AbstractCegarLoop]: Abstraction has 3268 states and 3557 transitions. [2020-10-23 18:35:08,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:35:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 3557 transitions. [2020-10-23 18:35:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-23 18:35:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:08,518 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:08,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:08,732 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash -962352344, now seen corresponding path program 1 times [2020-10-23 18:35:08,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633717989] [2020-10-23 18:35:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:08,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 18:35:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:09,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-23 18:35:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-23 18:35:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 133 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-23 18:35:09,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633717989] [2020-10-23 18:35:09,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985621205] [2020-10-23 18:35:09,213 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 18:35:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:09,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:35:09,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-23 18:35:09,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:35:09,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:35:09,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572712567] [2020-10-23 18:35:09,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:35:09,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:09,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:35:09,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:35:09,573 INFO L87 Difference]: Start difference. First operand 3268 states and 3557 transitions. Second operand 11 states. [2020-10-23 18:35:10,046 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-10-23 18:35:10,967 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-10-23 18:35:13,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:13,185 INFO L93 Difference]: Finished difference Result 4916 states and 5350 transitions. [2020-10-23 18:35:13,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:35:13,186 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-10-23 18:35:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:13,201 INFO L225 Difference]: With dead ends: 4916 [2020-10-23 18:35:13,201 INFO L226 Difference]: Without dead ends: 2980 [2020-10-23 18:35:13,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-10-23 18:35:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2020-10-23 18:35:13,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2974. [2020-10-23 18:35:13,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2020-10-23 18:35:13,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3207 transitions. [2020-10-23 18:35:13,294 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3207 transitions. Word has length 217 [2020-10-23 18:35:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:13,295 INFO L481 AbstractCegarLoop]: Abstraction has 2974 states and 3207 transitions. [2020-10-23 18:35:13,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:35:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3207 transitions. [2020-10-23 18:35:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-23 18:35:13,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:35:13,304 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:35:13,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:13,518 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:35:13,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:35:13,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1469458123, now seen corresponding path program 1 times [2020-10-23 18:35:13,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:35:13,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453401769] [2020-10-23 18:35:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:35:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:35:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:35:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-23 18:35:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-23 18:35:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-23 18:35:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-23 18:35:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 138 proven. 8 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-23 18:35:13,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453401769] [2020-10-23 18:35:13,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111197172] [2020-10-23 18:35:13,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:35:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:35:14,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-23 18:35:14,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:35:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-23 18:35:14,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:35:14,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-10-23 18:35:14,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379119734] [2020-10-23 18:35:14,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:35:14,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:35:14,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:35:14,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:35:14,150 INFO L87 Difference]: Start difference. First operand 2974 states and 3207 transitions. Second operand 3 states. [2020-10-23 18:35:14,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:35:14,745 INFO L93 Difference]: Finished difference Result 4746 states and 5114 transitions. [2020-10-23 18:35:14,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:35:14,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-10-23 18:35:14,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:35:14,747 INFO L225 Difference]: With dead ends: 4746 [2020-10-23 18:35:14,747 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:35:14,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:35:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:35:14,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:35:14,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:35:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:35:14,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2020-10-23 18:35:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:35:14,759 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:35:14,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:35:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:35:14,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:35:14,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-23 18:35:14,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:35:15,725 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 163 [2020-10-23 18:35:15,961 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 163 [2020-10-23 18:35:16,232 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 31 [2020-10-23 18:35:18,216 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 185 DAG size of output: 75 [2020-10-23 18:35:18,928 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-10-23 18:35:19,581 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 57 [2020-10-23 18:35:20,025 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2020-10-23 18:35:20,031 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:35:20,031 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:35:20,031 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:35:20,032 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:35:20,032 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:35:20,032 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#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)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-23 18:35:20,032 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:35:20,032 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:35:20,032 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-23 18:35:20,033 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-23 18:35:20,034 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-23 18:35:20,035 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:35:20,036 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-23 18:35:20,037 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-23 18:35:20,038 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,039 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-23 18:35:20,040 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-23 18:35:20,041 INFO L270 CegarLoopResult]: At program point L474(line 474) the Hoare annotation is: (let ((.cse5 (not (<= |old(~a17~0)| 7))) (.cse0 (not (= |old(~a25~0)| 1))) (.cse3 (= |old(~a11~0)| 1)) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse4 (not (<= |old(~a28~0)| 10))) (.cse1 (not (= |old(~a19~0)| 1))) (.cse2 (not (= 8 |old(~a17~0)|))) (.cse8 (not (<= 9 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse1 (not (<= |old(~a11~0)| 0))) (or .cse4 (= 10 |old(~a28~0)|) .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse8 (not (= |old(~a11~0)| |old(~a25~0)|))) (or (not (<= |old(~a17~0)| 8)) .cse7 .cse0 .cse1) (or .cse0 .cse4 .cse2 .cse3) (or .cse4 .cse1 .cse6) (or .cse7 .cse2) (or .cse4 .cse1 .cse2 .cse8))) [2020-10-23 18:35:20,041 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-23 18:35:20,041 INFO L274 CegarLoopResult]: For program point L474-1(line 474) no Hoare annotation was computed. [2020-10-23 18:35:20,041 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-23 18:35:20,041 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-23 18:35:20,041 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-23 18:35:20,042 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-23 18:35:20,043 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-23 18:35:20,044 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,045 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,046 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-23 18:35:20,047 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,048 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-23 18:35:20,049 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,050 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-23 18:35:20,051 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-23 18:35:20,052 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-23 18:35:20,052 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse19 (= ~a25~0 |old(~a25~0)|)) (.cse2 (= ~a17~0 8)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse23 (= ~a28~0 |old(~a28~0)|)) (.cse22 (= ~a17~0 |old(~a17~0)|)) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse17 (= ~a19~0 1)) (.cse3 (= ~a25~0 1))) (let ((.cse13 (and .cse23 .cse22 .cse0 .cse17 .cse3)) (.cse14 (= 10 |old(~a28~0)|)) (.cse21 (not (<= |old(~a17~0)| 7))) (.cse16 (<= 9 ~a28~0)) (.cse18 (not (= ~a28~0 10))) (.cse20 (not (<= 9 |old(~a28~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse15 (and .cse23 .cse0 .cse19 .cse2 .cse5)) (.cse7 (not (<= |old(~a28~0)| 10))) (.cse10 (not (<= 10 |old(~a28~0)|))) (.cse1 (<= 10 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse6 (not (= |old(~a25~0)| 1))) (.cse12 (not (= |old(~a19~0)| 1))) (.cse8 (not (= 8 |old(~a17~0)|))) (.cse9 (= |old(~a11~0)| 1))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10) (or .cse11 .cse6 .cse12 (not (<= |old(~a11~0)| 0)) .cse13) (or .cse7 .cse14 .cse15 .cse8 .cse9) (or .cse7 .cse12 .cse14 .cse8 (and .cse0 .cse16 .cse17 .cse18 .cse19 .cse2 .cse4) .cse20) (or .cse7 .cse21 (and .cse22 .cse0 .cse1 .cse19 .cse4 .cse5) .cse10) (or (not (<= |old(~a17~0)| 8)) .cse11 .cse6 .cse12 .cse13) (or .cse6 .cse7 .cse14 .cse21 (and (= ~a25~0 ~a11~0) .cse22 .cse16 .cse18 .cse3 .cse4 .cse5) .cse20 (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse11 .cse15 .cse8) (or .cse7 .cse12 .cse10 (and .cse22 .cse0 .cse1 .cse17 .cse19 .cse4)) (or .cse6 .cse12 (and .cse23 .cse0 .cse17 .cse2 .cse3) .cse8 .cse9)))) [2020-10-23 18:35:20,052 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-23 18:35:20,052 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-23 18:35:20,052 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,053 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-23 18:35:20,054 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,055 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-23 18:35:20,056 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-23 18:35:20,057 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-23 18:35:20,058 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-23 18:35:20,059 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-23 18:35:20,059 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:35:20,059 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7)) [2020-10-23 18:35:20,059 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:35:20,059 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:35:20,059 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a17~0 8)) (.cse5 (not (= ~a11~0 1))) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse7 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2) (and (not (= ~a28~0 10)) .cse4 .cse5 .cse2) (not (= |old(~a19~0)| 1)) (and .cse3 .cse6 .cse7 (<= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse8 .cse3 (<= ~a17~0 |old(~a17~0)|) (<= 8 ~a17~0) .cse2) (and (= ~a25~0 ~a11~0) .cse8 .cse6 .cse1 .cse2) (and .cse3 .cse4 .cse6 .cse5) (and .cse4 .cse7) (and .cse4 .cse6 .cse5 .cse2) (and (<= ~a11~0 0) .cse3 .cse6 .cse7) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:35:20,060 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-23 18:35:20,060 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:35:20,060 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-23 18:35:20,060 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse0 (<= 10 ~a28~0)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a17~0 8)) (.cse5 (not (= ~a11~0 1))) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse6 (= ~a25~0 1)) (.cse7 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2) (and (not (= ~a28~0 10)) .cse4 .cse5 .cse2) (not (= |old(~a19~0)| 1)) (and .cse3 .cse6 .cse7 (<= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse8 .cse3 (<= ~a17~0 |old(~a17~0)|) (<= 8 ~a17~0) .cse2) (and (= ~a25~0 ~a11~0) .cse8 .cse6 .cse1 .cse2) (and .cse3 .cse4 .cse6 .cse5) (and .cse4 .cse7) (and .cse4 .cse6 .cse5 .cse2) (and (<= ~a11~0 0) .cse3 .cse6 .cse7) (not (<= |old(~a11~0)| 0)) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-23 18:35:20,060 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-23 18:35:20,060 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-23 18:35:20,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:35:20 BoogieIcfgContainer [2020-10-23 18:35:20,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:35:20,094 INFO L168 Benchmark]: Toolchain (without parser) took 39261.02 ms. Allocated memory was 169.9 MB in the beginning and 546.3 MB in the end (delta: 376.4 MB). Free memory was 142.9 MB in the beginning and 443.8 MB in the end (delta: -300.9 MB). Peak memory consumption was 331.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:20,095 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:35:20,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.97 ms. Allocated memory is still 169.9 MB. Free memory was 142.3 MB in the beginning and 143.2 MB in the end (delta: -902.4 kB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:20,098 INFO L168 Benchmark]: Boogie Preprocessor took 124.85 ms. Allocated memory is still 169.9 MB. Free memory was 143.2 MB in the beginning and 138.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:20,099 INFO L168 Benchmark]: RCFGBuilder took 1520.16 ms. Allocated memory is still 169.9 MB. Free memory was 138.2 MB in the beginning and 126.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:20,100 INFO L168 Benchmark]: TraceAbstraction took 36731.77 ms. Allocated memory was 169.9 MB in the beginning and 546.3 MB in the end (delta: 376.4 MB). Free memory was 125.4 MB in the beginning and 443.8 MB in the end (delta: -318.4 MB). Peak memory consumption was 313.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:35:20,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 865.97 ms. Allocated memory is still 169.9 MB. Free memory was 142.3 MB in the beginning and 143.2 MB in the end (delta: -902.4 kB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.85 ms. Allocated memory is still 169.9 MB. Free memory was 143.2 MB in the beginning and 138.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1520.16 ms. Allocated memory is still 169.9 MB. Free memory was 138.2 MB in the beginning and 126.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 36731.77 ms. Allocated memory was 169.9 MB in the beginning and 546.3 MB in the end (delta: 376.4 MB). Free memory was 125.4 MB in the beginning and 443.8 MB in the end (delta: -318.4 MB). Peak memory consumption was 313.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((((((((((((10 <= a28 && a17 <= 7) && a28 <= 10) || ((a19 == 1 && 10 <= a28) && a28 <= 10)) || (((!(a28 == 10) && a17 == 8) && !(a11 == 1)) && a28 <= 10)) || !(\old(a19) == 1)) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || !(8 == \old(a17))) || !(\old(a28) <= 7)) || ((((9 <= a28 && a19 == 1) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10)) || ((((a25 == a11 && 9 <= a28) && a25 == 1) && a17 <= 7) && a28 <= 10)) || (((a19 == 1 && a17 == 8) && a25 == 1) && !(a11 == 1))) || (a17 == 8 && a28 <= 7)) || (((a17 == 8 && a25 == 1) && !(a11 == 1)) && a28 <= 10)) || (((a11 <= 0 && a19 == 1) && a25 == 1) && a28 <= 7)) || !(\old(a11) <= 0)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.5s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 712 SDtfs, 6468 SDslu, 520 SDs, 0 SdLazy, 8575 SolverSat, 1593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1542 GetRequests, 1447 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4806occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 657 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 374 PreInvPairs, 446 NumberOfFragments, 938 HoareAnnotationTreeSize, 374 FomulaSimplifications, 25785 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6603 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2974 NumberOfCodeBlocks, 2974 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2956 ConstructedInterpolants, 0 QuantifiedInterpolants, 1316669 SizeOfPredicates, 9 NumberOfNonLiveVariables, 4179 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1544/1633 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...