/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_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:38:13,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:38:13,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:38:13,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:38:13,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:38:13,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:38:13,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:38:13,256 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 [2020-11-06 22:38:13,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:38:13,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:38:13,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:38:13,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:38:13,323 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:38:13,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:38:13,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:38:13,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:38:13,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:38:13,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:38:13,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:38:13,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:38:13,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:38:13,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:38:13,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:38:13,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:38:13,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:38:13,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:38:13,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:38:13,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:38:13,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:38:13,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:38:13,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:38:13,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:38:13,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:38:13,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:38:13,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:38:13,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:38:13,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:38:13,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:38:13,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:38:13,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:38:13,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:38:13,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:38:13,829 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:38:13,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-11-06 22:38:13,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6cb41ebd/205ab84e75ee45b8a9f63ad346bb11a9/FLAG1fd5a9b31 [2020-11-06 22:38:14,774 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:38:14,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-11-06 22:38:14,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6cb41ebd/205ab84e75ee45b8a9f63ad346bb11a9/FLAG1fd5a9b31 [2020-11-06 22:38:15,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6cb41ebd/205ab84e75ee45b8a9f63ad346bb11a9 [2020-11-06 22:38:15,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:38:15,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:38:15,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:38:15,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:38:15,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:38:15,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:15,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d72ea94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15, skipping insertion in model container [2020-11-06 22:38:15,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:15,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:38:15,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:38:15,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:38:15,623 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:38:15,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:38:15,914 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:38:15,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15 WrapperNode [2020-11-06 22:38:15,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:38:15,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:38:15,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:38:15,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:38:15,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:15,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:15,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:15,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:16,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:16,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:16,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (1/1) ... [2020-11-06 22:38:16,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:38:16,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:38:16,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:38:16,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:38:16,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (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 [2020-11-06 22:38:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:38:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:38:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:38:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:38:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:38:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:38:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:38:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:38:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:38:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:38:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:38:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:38:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:38:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:38:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:38:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:38:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:38:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:38:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:38:17,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:38:17,808 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:38:17,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:17 BoogieIcfgContainer [2020-11-06 22:38:17,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:38:17,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:38:17,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:38:17,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:38:17,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:38:15" (1/3) ... [2020-11-06 22:38:17,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5198199c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:17, skipping insertion in model container [2020-11-06 22:38:17,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:15" (2/3) ... [2020-11-06 22:38:17,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5198199c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:17, skipping insertion in model container [2020-11-06 22:38:17,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:17" (3/3) ... [2020-11-06 22:38:17,822 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-11-06 22:38:17,839 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:38:17,843 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:38:17,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:38:17,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:38:17,889 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:38:17,889 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:38:17,889 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:38:17,890 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:38:17,890 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:38:17,890 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:38:17,890 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:38:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-11-06 22:38:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-06 22:38:17,930 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:17,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:17,932 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:17,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:17,938 INFO L82 PathProgramCache]: Analyzing trace with hash 665684877, now seen corresponding path program 1 times [2020-11-06 22:38:17,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:17,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020467731] [2020-11-06 22:38:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:18,800 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-06 22:38:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:38:18,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020467731] [2020-11-06 22:38:18,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:38:18,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:38:18,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916341194] [2020-11-06 22:38:18,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:38:18,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:18,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:38:18,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:38:18,985 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-11-06 22:38:19,234 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-06 22:38:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:21,267 INFO L93 Difference]: Finished difference Result 636 states and 1083 transitions. [2020-11-06 22:38:21,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:38:21,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2020-11-06 22:38:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:21,287 INFO L225 Difference]: With dead ends: 636 [2020-11-06 22:38:21,288 INFO L226 Difference]: Without dead ends: 332 [2020-11-06 22:38:21,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:38:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-06 22:38:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 325. [2020-11-06 22:38:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-11-06 22:38:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 461 transitions. [2020-11-06 22:38:21,379 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 461 transitions. Word has length 130 [2020-11-06 22:38:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:21,380 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 461 transitions. [2020-11-06 22:38:21,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:38:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 461 transitions. [2020-11-06 22:38:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-11-06 22:38:21,387 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:21,387 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:21,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:38:21,388 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:21,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1314061790, now seen corresponding path program 1 times [2020-11-06 22:38:21,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:21,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40500576] [2020-11-06 22:38:21,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:21,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:21,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:38:21,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40500576] [2020-11-06 22:38:21,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:38:21,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:38:21,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424923079] [2020-11-06 22:38:21,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:38:21,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:21,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:38:21,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:38:21,795 INFO L87 Difference]: Start difference. First operand 325 states and 461 transitions. Second operand 8 states. [2020-11-06 22:38:24,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:24,399 INFO L93 Difference]: Finished difference Result 1260 states and 1841 transitions. [2020-11-06 22:38:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 22:38:24,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-11-06 22:38:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:24,412 INFO L225 Difference]: With dead ends: 1260 [2020-11-06 22:38:24,413 INFO L226 Difference]: Without dead ends: 941 [2020-11-06 22:38:24,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:38:24,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-11-06 22:38:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 927. [2020-11-06 22:38:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-11-06 22:38:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1227 transitions. [2020-11-06 22:38:24,492 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1227 transitions. Word has length 152 [2020-11-06 22:38:24,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:24,492 INFO L481 AbstractCegarLoop]: Abstraction has 927 states and 1227 transitions. [2020-11-06 22:38:24,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:38:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1227 transitions. [2020-11-06 22:38:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-11-06 22:38:24,502 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:24,502 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:24,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:38:24,503 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:24,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1761680023, now seen corresponding path program 1 times [2020-11-06 22:38:24,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:24,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871904206] [2020-11-06 22:38:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:24,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:24,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:24,778 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:38:24,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871904206] [2020-11-06 22:38:24,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:38:24,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:38:24,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770774874] [2020-11-06 22:38:24,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:38:24,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:24,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:38:24,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:38:24,793 INFO L87 Difference]: Start difference. First operand 927 states and 1227 transitions. Second operand 8 states. [2020-11-06 22:38:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:25,960 INFO L93 Difference]: Finished difference Result 1733 states and 2347 transitions. [2020-11-06 22:38:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-06 22:38:25,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-11-06 22:38:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:25,974 INFO L225 Difference]: With dead ends: 1733 [2020-11-06 22:38:25,975 INFO L226 Difference]: Without dead ends: 812 [2020-11-06 22:38:25,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:38:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-11-06 22:38:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 772. [2020-11-06 22:38:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2020-11-06 22:38:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 920 transitions. [2020-11-06 22:38:26,064 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 920 transitions. Word has length 153 [2020-11-06 22:38:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:26,066 INFO L481 AbstractCegarLoop]: Abstraction has 772 states and 920 transitions. [2020-11-06 22:38:26,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:38:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 920 transitions. [2020-11-06 22:38:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-11-06 22:38:26,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:26,074 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:26,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:38:26,074 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:26,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1744335413, now seen corresponding path program 1 times [2020-11-06 22:38:26,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:26,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929182151] [2020-11-06 22:38:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:26,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:26,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:38:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:26,615 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-06 22:38:26,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929182151] [2020-11-06 22:38:26,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015156123] [2020-11-06 22:38:26,616 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 [2020-11-06 22:38:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:26,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:38:26,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:38:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-06 22:38:27,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:38:27,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:38:27,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902417953] [2020-11-06 22:38:27,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:38:27,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:27,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:38:27,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:38:27,139 INFO L87 Difference]: Start difference. First operand 772 states and 920 transitions. Second operand 3 states. [2020-11-06 22:38:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:27,693 INFO L93 Difference]: Finished difference Result 1980 states and 2375 transitions. [2020-11-06 22:38:27,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:38:27,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-11-06 22:38:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:27,699 INFO L225 Difference]: With dead ends: 1980 [2020-11-06 22:38:27,700 INFO L226 Difference]: Without dead ends: 765 [2020-11-06 22:38:27,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:38:27,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-11-06 22:38:27,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2020-11-06 22:38:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-11-06 22:38:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 899 transitions. [2020-11-06 22:38:27,758 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 899 transitions. Word has length 165 [2020-11-06 22:38:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:27,759 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 899 transitions. [2020-11-06 22:38:27,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:38:27,759 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 899 transitions. [2020-11-06 22:38:27,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-11-06 22:38:27,763 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:27,763 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:27,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:38:27,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:27,980 INFO L82 PathProgramCache]: Analyzing trace with hash 92009665, now seen corresponding path program 1 times [2020-11-06 22:38:27,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:27,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303310735] [2020-11-06 22:38:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:28,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:28,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:28,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-06 22:38:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:38:28,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303310735] [2020-11-06 22:38:28,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427227244] [2020-11-06 22:38:28,223 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 [2020-11-06 22:38:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:28,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:38:28,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:38:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:38:28,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:38:28,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-11-06 22:38:28,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384487277] [2020-11-06 22:38:28,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:38:28,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:28,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:38:28,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:38:28,502 INFO L87 Difference]: Start difference. First operand 765 states and 899 transitions. Second operand 11 states. [2020-11-06 22:38:28,721 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-06 22:38:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:34,167 INFO L93 Difference]: Finished difference Result 3524 states and 4349 transitions. [2020-11-06 22:38:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-11-06 22:38:34,168 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 175 [2020-11-06 22:38:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:34,184 INFO L225 Difference]: With dead ends: 3524 [2020-11-06 22:38:34,185 INFO L226 Difference]: Without dead ends: 2156 [2020-11-06 22:38:34,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=480, Invalid=2490, Unknown=0, NotChecked=0, Total=2970 [2020-11-06 22:38:34,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2020-11-06 22:38:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 1813. [2020-11-06 22:38:34,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2020-11-06 22:38:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 1963 transitions. [2020-11-06 22:38:34,278 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 1963 transitions. Word has length 175 [2020-11-06 22:38:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:34,279 INFO L481 AbstractCegarLoop]: Abstraction has 1813 states and 1963 transitions. [2020-11-06 22:38:34,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:38:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 1963 transitions. [2020-11-06 22:38:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-06 22:38:34,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:34,287 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:34,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:38:34,503 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:34,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1417209178, now seen corresponding path program 1 times [2020-11-06 22:38:34,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:34,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292873903] [2020-11-06 22:38:34,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-06 22:38:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-11-06 22:38:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 65 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-06 22:38:34,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292873903] [2020-11-06 22:38:34,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582460857] [2020-11-06 22:38:34,767 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 [2020-11-06 22:38:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:34,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:38:34,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:38:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-11-06 22:38:34,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:38:34,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-11-06 22:38:34,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481221465] [2020-11-06 22:38:34,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:38:34,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:34,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:38:34,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:38:34,968 INFO L87 Difference]: Start difference. First operand 1813 states and 1963 transitions. Second operand 3 states. [2020-11-06 22:38:35,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:35,444 INFO L93 Difference]: Finished difference Result 3914 states and 4290 transitions. [2020-11-06 22:38:35,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:38:35,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-11-06 22:38:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:35,456 INFO L225 Difference]: With dead ends: 3914 [2020-11-06 22:38:35,456 INFO L226 Difference]: Without dead ends: 2107 [2020-11-06 22:38:35,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:38:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2020-11-06 22:38:35,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 2105. [2020-11-06 22:38:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2020-11-06 22:38:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2304 transitions. [2020-11-06 22:38:35,531 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2304 transitions. Word has length 192 [2020-11-06 22:38:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:35,531 INFO L481 AbstractCegarLoop]: Abstraction has 2105 states and 2304 transitions. [2020-11-06 22:38:35,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:38:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2304 transitions. [2020-11-06 22:38:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-06 22:38:35,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:35,539 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-06 22:38:35,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:38:35,753 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:35,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2144989915, now seen corresponding path program 1 times [2020-11-06 22:38:35,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:35,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947109171] [2020-11-06 22:38:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:35,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:35,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:38:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 92 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:38:36,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947109171] [2020-11-06 22:38:36,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003013589] [2020-11-06 22:38:36,050 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 [2020-11-06 22:38:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:36,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:38:36,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:38:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:38:36,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:38:36,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-11-06 22:38:36,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696588529] [2020-11-06 22:38:36,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-06 22:38:36,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:36,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-06 22:38:36,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:38:36,255 INFO L87 Difference]: Start difference. First operand 2105 states and 2304 transitions. Second operand 12 states. [2020-11-06 22:38:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:38,746 INFO L93 Difference]: Finished difference Result 4231 states and 4651 transitions. [2020-11-06 22:38:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-06 22:38:38,747 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-11-06 22:38:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:38,757 INFO L225 Difference]: With dead ends: 4231 [2020-11-06 22:38:38,758 INFO L226 Difference]: Without dead ends: 2132 [2020-11-06 22:38:38,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2020-11-06 22:38:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2020-11-06 22:38:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2119. [2020-11-06 22:38:38,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2119 states. [2020-11-06 22:38:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2277 transitions. [2020-11-06 22:38:38,825 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2277 transitions. Word has length 200 [2020-11-06 22:38:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:38,825 INFO L481 AbstractCegarLoop]: Abstraction has 2119 states and 2277 transitions. [2020-11-06 22:38:38,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-06 22:38:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2277 transitions. [2020-11-06 22:38:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-06 22:38:38,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:38:38,835 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:38:39,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:38:39,049 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:38:39,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:38:39,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1218818023, now seen corresponding path program 1 times [2020-11-06 22:38:39,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:38:39,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793788138] [2020-11-06 22:38:39,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:38:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:38:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:38:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:39,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:38:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:38:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-06 22:38:39,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793788138] [2020-11-06 22:38:39,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:38:39,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:38:39,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797660254] [2020-11-06 22:38:39,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:38:39,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:38:39,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:38:39,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:38:39,348 INFO L87 Difference]: Start difference. First operand 2119 states and 2277 transitions. Second operand 5 states. [2020-11-06 22:38:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:38:40,380 INFO L93 Difference]: Finished difference Result 4649 states and 4987 transitions. [2020-11-06 22:38:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:38:40,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2020-11-06 22:38:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:38:40,381 INFO L225 Difference]: With dead ends: 4649 [2020-11-06 22:38:40,381 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:38:40,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:38:40,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:38:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:38:40,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:38:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:38:40,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2020-11-06 22:38:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:38:40,393 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:38:40,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:38:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:38:40,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:38:40,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 22:38:40,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:38:40,849 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 142 [2020-11-06 22:38:40,976 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 142 [2020-11-06 22:38:42,127 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 156 DAG size of output: 55 [2020-11-06 22:38:42,469 WARN L194 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2020-11-06 22:38:42,871 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2020-11-06 22:38:43,284 WARN L194 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2020-11-06 22:38:43,291 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:38:43,291 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:38:43,291 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:38:43,292 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:38:43,292 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:38:43,292 INFO L262 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)|)) [2020-11-06 22:38:43,292 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:38:43,292 INFO L266 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-11-06 22:38:43,293 INFO L266 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,294 INFO L266 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-06 22:38:43,295 INFO L266 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-11-06 22:38:43,296 INFO L266 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-06 22:38:43,297 INFO L266 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-11-06 22:38:43,298 INFO L266 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,299 INFO L266 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-06 22:38:43,300 INFO L266 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,301 INFO L266 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-11-06 22:38:43,302 INFO L266 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-11-06 22:38:43,302 INFO L266 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-11-06 22:38:43,302 INFO L266 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-06 22:38:43,302 INFO L262 CegarLoopResult]: At program point L543(line 543) the Hoare annotation is: (let ((.cse5 (= 11 |old(~a28~0)|)) (.cse2 (= |old(~a25~0)| 1)) (.cse3 (= |old(~a11~0)| 1)) (.cse0 (not (<= |old(~a28~0)| 7))) (.cse1 (not (<= |old(~a17~0)| 8))) (.cse4 (not (= |old(~a19~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse1 .cse4 .cse5 (not (<= 9 |old(~a28~0)|))) (or .cse5 (not (<= |old(~a17~0)| 7))) (or .cse1 .cse5 .cse3 (not (<= 10 |old(~a28~0)|))) (or .cse1 (not (<= |old(~a28~0)| 8)) .cse2 .cse3) (or .cse1 .cse4 .cse3) (or .cse0 .cse1 .cse4))) [2020-11-06 22:38:43,302 INFO L266 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-06 22:38:43,302 INFO L266 CegarLoopResult]: For program point L543-1(line 543) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-11-06 22:38:43,303 INFO L266 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-06 22:38:43,304 INFO L266 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-11-06 22:38:43,305 INFO L266 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,306 INFO L266 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-06 22:38:43,307 INFO L266 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-11-06 22:38:43,308 INFO L266 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-06 22:38:43,309 INFO L266 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-11-06 22:38:43,310 INFO L266 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-11-06 22:38:43,311 INFO L266 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-06 22:38:43,312 INFO L266 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-06 22:38:43,312 INFO L266 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-06 22:38:43,312 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse6 (= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a17~0 |old(~a17~0)|)) (.cse12 (= ~a11~0 |old(~a11~0)|)) (.cse8 (= ~a19~0 1)) (.cse9 (= ~a25~0 |old(~a25~0)|))) (let ((.cse2 (not (<= |old(~a28~0)| 7))) (.cse5 (not (= |old(~a19~0)| 1))) (.cse11 (and .cse6 .cse7 .cse12 .cse8 .cse9)) (.cse10 (= |old(~a25~0)| 1)) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse0 (and .cse6 .cse7 .cse12 .cse9 (= ~a19~0 |old(~a19~0)|))) (.cse1 (= 11 |old(~a28~0)|)) (.cse4 (= |old(~a11~0)| 1))) (and (or .cse0 .cse1 (not (<= |old(~a17~0)| 7))) (or .cse2 .cse3 .cse0 .cse4) (or .cse2 .cse3 .cse5 (and .cse6 (= ~a25~0 ~a11~0) .cse7 .cse8 .cse9) (not (= |old(~a11~0)| |old(~a25~0)|))) (or .cse2 .cse3 .cse0 .cse10) (or .cse3 .cse5 .cse1 .cse11 (not (<= 9 |old(~a28~0)|))) (or .cse3 .cse5 .cse4 .cse11) (or .cse3 .cse0 (not (<= |old(~a28~0)| 8)) .cse10 .cse4) (or .cse3 .cse0 .cse1 .cse4 (not (<= 10 |old(~a28~0)|)))))) [2020-11-06 22:38:43,312 INFO L266 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-06 22:38:43,312 INFO L266 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-06 22:38:43,312 INFO L266 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,313 INFO L266 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-06 22:38:43,314 INFO L266 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,315 INFO L266 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-06 22:38:43,316 INFO L266 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,317 INFO L266 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:38:43,318 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (<= ~a28~0 7) (<= ~a17~0 8) (not (= ~a25~0 1))) [2020-11-06 22:38:43,319 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:38:43,319 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:38:43,319 INFO L262 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse2 (not (= ~a25~0 1))) (.cse4 (not (= ~a28~0 11))) (.cse3 (not (= ~a11~0 1))) (.cse5 (= ~a19~0 1)) (.cse1 (<= ~a17~0 8)) (.cse0 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (= 8 |old(~a28~0)|) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (and (<= 10 ~a28~0) .cse3 .cse1 .cse4) (and (<= ~a28~0 8) .cse3 .cse1 .cse2) (and (<= 9 ~a28~0) .cse5 .cse1 .cse4) (and .cse3 .cse0 .cse1) (and (<= ~a17~0 7) .cse4) (not (<= |old(~a17~0)| 8)) (and .cse5 .cse3 .cse1) (and .cse5 .cse1 .cse0) (= |old(~a11~0)| 1) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-11-06 22:38:43,319 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a25~0 ~a11~0) (= ~a17~0 |old(~a17~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|)) (= |old(~a11~0)| 1) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-11-06 22:38:43,319 INFO L266 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:38:43,319 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-11-06 22:38:43,320 INFO L262 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse2 (not (= ~a25~0 1))) (.cse4 (not (= ~a28~0 11))) (.cse3 (not (= ~a11~0 1))) (.cse5 (= ~a19~0 1)) (.cse1 (<= ~a17~0 8)) (.cse0 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (= 8 |old(~a28~0)|) (not (= |old(~a19~0)| 1)) (not (<= |old(~a28~0)| 8)) (and (<= 10 ~a28~0) .cse3 .cse1 .cse4) (and (<= ~a28~0 8) .cse3 .cse1 .cse2) (and (<= 9 ~a28~0) .cse5 .cse1 .cse4) (and .cse3 .cse0 .cse1) (and (<= ~a17~0 7) .cse4) (not (<= |old(~a17~0)| 8)) (and .cse5 .cse3 .cse1) (and .cse5 .cse1 .cse0) (= |old(~a11~0)| 1) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-11-06 22:38:43,320 INFO L266 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-11-06 22:38:43,320 INFO L266 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-11-06 22:38:43,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:38:43 BoogieIcfgContainer [2020-11-06 22:38:43,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:38:43,343 INFO L168 Benchmark]: Toolchain (without parser) took 28316.95 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 124.9 MB in the beginning and 237.7 MB in the end (delta: -112.8 MB). Peak memory consumption was 291.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:43,344 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:38:43,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.71 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 131.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:43,346 INFO L168 Benchmark]: Boogie Preprocessor took 138.61 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 127.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:43,347 INFO L168 Benchmark]: RCFGBuilder took 1754.16 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 105.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:43,348 INFO L168 Benchmark]: TraceAbstraction took 25528.93 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 105.1 MB in the beginning and 237.7 MB in the end (delta: -132.5 MB). Peak memory consumption was 271.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:38:43,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 883.71 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 131.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 31.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.61 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 127.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1754.16 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 105.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25528.93 ms. Allocated memory was 151.0 MB in the beginning and 483.4 MB in the end (delta: 332.4 MB). Free memory was 105.1 MB in the beginning and 237.7 MB in the end (delta: -132.5 MB). Peak memory consumption was 271.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((((((((((a28 <= 7 && a17 <= 8) && !(a25 == 1)) || 8 == \old(a28)) || !(\old(a19) == 1)) || !(\old(a28) <= 8)) || (((10 <= a28 && !(a11 == 1)) && a17 <= 8) && !(a28 == 11))) || (((a28 <= 8 && !(a11 == 1)) && a17 <= 8) && !(a25 == 1))) || (((9 <= a28 && a19 == 1) && a17 <= 8) && !(a28 == 11))) || ((!(a11 == 1) && a28 <= 7) && a17 <= 8)) || (a17 <= 7 && !(a28 == 11))) || !(\old(a17) <= 8)) || ((a19 == 1 && !(a11 == 1)) && a17 <= 8)) || ((a19 == 1 && a17 <= 8) && a28 <= 7)) || \old(a11) == 1) || !(\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: 22.5s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 524 SDtfs, 5873 SDslu, 475 SDs, 0 SdLazy, 7306 SolverSat, 1608 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 914 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1057 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2119occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 419 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 182 PreInvPairs, 232 NumberOfFragments, 713 HoareAnnotationTreeSize, 182 FomulaSimplifications, 33758 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4877 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 2109 NumberOfCodeBlocks, 2109 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2097 ConstructedInterpolants, 0 QuantifiedInterpolants, 1037123 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2051 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 673/713 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...