/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:33:20,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:33:20,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:33:20,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:33:20,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:33:20,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:33:20,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:33:20,830 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 22:33:20,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:33:20,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:33:20,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:33:20,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:33:20,858 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:33:20,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:33:20,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:33:20,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:33:20,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:33:20,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:33:20,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:33:20,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:33:20,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:33:20,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:33:20,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:33:20,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:33:20,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:33:20,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:33:20,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:33:20,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:33:20,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:33:20,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:33:20,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:33:20,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:33:20,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:33:21,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:33:21,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:33:21,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:33:21,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:33:21,230 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:33:21,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-11-06 22:33:21,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767293189/58cefb1f808f4e09a18c25d891dc662f/FLAGa1fd1f501 [2020-11-06 22:33:22,024 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:33:22,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-11-06 22:33:22,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767293189/58cefb1f808f4e09a18c25d891dc662f/FLAGa1fd1f501 [2020-11-06 22:33:22,230 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767293189/58cefb1f808f4e09a18c25d891dc662f [2020-11-06 22:33:22,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:33:22,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:33:22,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:33:22,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:33:22,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:33:22,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:22" (1/1) ... [2020-11-06 22:33:22,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2369fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22, skipping insertion in model container [2020-11-06 22:33:22,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:22" (1/1) ... [2020-11-06 22:33:22,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:33:22,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:33:22,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:33:22,784 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:33:23,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:33:23,050 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:33:23,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23 WrapperNode [2020-11-06 22:33:23,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:33:23,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:33:23,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:33:23,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:33:23,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (1/1) ... [2020-11-06 22:33:23,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:33:23,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:33:23,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:33:23,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:33:23,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (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 22:33:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:33:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:33:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:33:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:33:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:33:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:33:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:33:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:33:24,351 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:33:24,352 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:33:24,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:24 BoogieIcfgContainer [2020-11-06 22:33:24,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:33:24,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:33:24,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:33:24,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:33:24,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:33:22" (1/3) ... [2020-11-06 22:33:24,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb9416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:24, skipping insertion in model container [2020-11-06 22:33:24,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:23" (2/3) ... [2020-11-06 22:33:24,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb9416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:24, skipping insertion in model container [2020-11-06 22:33:24,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:24" (3/3) ... [2020-11-06 22:33:24,363 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-11-06 22:33:24,378 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:33:24,382 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:33:24,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:33:24,422 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:33:24,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:33:24,423 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:33:24,423 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:33:24,423 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:33:24,423 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:33:24,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:33:24,423 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:33:24,446 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-11-06 22:33:24,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-11-06 22:33:24,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:24,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:24,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:24,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:24,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1315592841, now seen corresponding path program 1 times [2020-11-06 22:33:24,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:24,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287397429] [2020-11-06 22:33:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:25,162 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:33:25,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:25,261 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 22:33:25,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287397429] [2020-11-06 22:33:25,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:33:25,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 22:33:25,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532255553] [2020-11-06 22:33:25,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:33:25,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:25,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:33:25,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:33:25,295 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-11-06 22:33:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:26,881 INFO L93 Difference]: Finished difference Result 587 states and 986 transitions. [2020-11-06 22:33:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:33:26,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-11-06 22:33:26,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:26,898 INFO L225 Difference]: With dead ends: 587 [2020-11-06 22:33:26,898 INFO L226 Difference]: Without dead ends: 287 [2020-11-06 22:33:26,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:33:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-11-06 22:33:26,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-11-06 22:33:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-11-06 22:33:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2020-11-06 22:33:26,998 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 110 [2020-11-06 22:33:26,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:26,999 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2020-11-06 22:33:26,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:33:27,000 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2020-11-06 22:33:27,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-06 22:33:27,005 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:27,006 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:27,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:33:27,006 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash 281212675, now seen corresponding path program 1 times [2020-11-06 22:33:27,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:27,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064777224] [2020-11-06 22:33:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:27,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:27,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:33:27,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064777224] [2020-11-06 22:33:27,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:33:27,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:33:27,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491706989] [2020-11-06 22:33:27,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:33:27,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:27,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:33:27,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:33:27,279 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand 8 states. [2020-11-06 22:33:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:28,923 INFO L93 Difference]: Finished difference Result 856 states and 1247 transitions. [2020-11-06 22:33:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:33:28,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-11-06 22:33:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:28,937 INFO L225 Difference]: With dead ends: 856 [2020-11-06 22:33:28,937 INFO L226 Difference]: Without dead ends: 579 [2020-11-06 22:33:28,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:33:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-11-06 22:33:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 559. [2020-11-06 22:33:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-11-06 22:33:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 789 transitions. [2020-11-06 22:33:28,999 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 789 transitions. Word has length 120 [2020-11-06 22:33:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:28,999 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 789 transitions. [2020-11-06 22:33:28,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:33:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 789 transitions. [2020-11-06 22:33:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-06 22:33:29,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:29,007 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:29,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:33:29,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -215052346, now seen corresponding path program 1 times [2020-11-06 22:33:29,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:29,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323128772] [2020-11-06 22:33:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:29,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:33:29,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323128772] [2020-11-06 22:33:29,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405097107] [2020-11-06 22:33:29,479 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 22:33:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:29,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:29,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:33:29,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:33:29,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-11-06 22:33:29,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491130972] [2020-11-06 22:33:29,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:33:29,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:29,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:33:29,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:33:29,834 INFO L87 Difference]: Start difference. First operand 559 states and 789 transitions. Second operand 3 states. [2020-11-06 22:33:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:30,484 INFO L93 Difference]: Finished difference Result 1660 states and 2386 transitions. [2020-11-06 22:33:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:33:30,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-11-06 22:33:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:30,493 INFO L225 Difference]: With dead ends: 1660 [2020-11-06 22:33:30,493 INFO L226 Difference]: Without dead ends: 1107 [2020-11-06 22:33:30,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:33:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2020-11-06 22:33:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 837. [2020-11-06 22:33:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-11-06 22:33:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1116 transitions. [2020-11-06 22:33:30,554 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1116 transitions. Word has length 121 [2020-11-06 22:33:30,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:30,555 INFO L481 AbstractCegarLoop]: Abstraction has 837 states and 1116 transitions. [2020-11-06 22:33:30,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:33:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1116 transitions. [2020-11-06 22:33:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-06 22:33:30,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:30,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:30,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:33:30,778 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:30,779 INFO L82 PathProgramCache]: Analyzing trace with hash -356191988, now seen corresponding path program 1 times [2020-11-06 22:33:30,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:30,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19338358] [2020-11-06 22:33:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:30,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:30,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:30,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:33:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:33:31,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19338358] [2020-11-06 22:33:31,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126023441] [2020-11-06 22:33:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:33:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:31,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:31,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:33:31,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:31,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:33:31,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787726153] [2020-11-06 22:33:31,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:33:31,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:31,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:33:31,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:33:31,319 INFO L87 Difference]: Start difference. First operand 837 states and 1116 transitions. Second operand 10 states. [2020-11-06 22:33:31,791 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-11-06 22:33:32,188 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-11-06 22:33:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:35,881 INFO L93 Difference]: Finished difference Result 3011 states and 4232 transitions. [2020-11-06 22:33:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-06 22:33:35,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2020-11-06 22:33:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:35,895 INFO L225 Difference]: With dead ends: 3011 [2020-11-06 22:33:35,895 INFO L226 Difference]: Without dead ends: 1876 [2020-11-06 22:33:35,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:33:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2020-11-06 22:33:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1812. [2020-11-06 22:33:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2020-11-06 22:33:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2116 transitions. [2020-11-06 22:33:35,987 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2116 transitions. Word has length 141 [2020-11-06 22:33:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:35,988 INFO L481 AbstractCegarLoop]: Abstraction has 1812 states and 2116 transitions. [2020-11-06 22:33:35,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:33:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2116 transitions. [2020-11-06 22:33:35,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-11-06 22:33:35,994 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:35,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:36,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:36,210 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:36,211 INFO L82 PathProgramCache]: Analyzing trace with hash -657308875, now seen corresponding path program 1 times [2020-11-06 22:33:36,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:36,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19547788] [2020-11-06 22:33:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:36,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:36,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-06 22:33:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:33:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19547788] [2020-11-06 22:33:36,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593714599] [2020-11-06 22:33:36,432 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 22:33:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:36,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:36,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-06 22:33:36,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:33:36,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-11-06 22:33:36,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754534791] [2020-11-06 22:33:36,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:33:36,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:36,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:33:36,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:33:36,684 INFO L87 Difference]: Start difference. First operand 1812 states and 2116 transitions. Second operand 3 states. [2020-11-06 22:33:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:37,158 INFO L93 Difference]: Finished difference Result 4853 states and 5745 transitions. [2020-11-06 22:33:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:33:37,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-11-06 22:33:37,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:37,177 INFO L225 Difference]: With dead ends: 4853 [2020-11-06 22:33:37,178 INFO L226 Difference]: Without dead ends: 3051 [2020-11-06 22:33:37,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:33:37,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2020-11-06 22:33:37,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3049. [2020-11-06 22:33:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2020-11-06 22:33:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3582 transitions. [2020-11-06 22:33:37,304 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3582 transitions. Word has length 150 [2020-11-06 22:33:37,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:37,307 INFO L481 AbstractCegarLoop]: Abstraction has 3049 states and 3582 transitions. [2020-11-06 22:33:37,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:33:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3582 transitions. [2020-11-06 22:33:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-06 22:33:37,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:37,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:37,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:37,532 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:37,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:37,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1057507297, now seen corresponding path program 1 times [2020-11-06 22:33:37,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:37,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793920009] [2020-11-06 22:33:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:37,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:37,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-11-06 22:33:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 44 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:33:37,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793920009] [2020-11-06 22:33:37,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395083707] [2020-11-06 22:33:37,766 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 22:33:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:37,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:33:37,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-06 22:33:37,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:33:37,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-11-06 22:33:37,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978935576] [2020-11-06 22:33:37,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:33:37,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:37,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:33:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:33:37,956 INFO L87 Difference]: Start difference. First operand 3049 states and 3582 transitions. Second operand 5 states. [2020-11-06 22:33:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:38,664 INFO L93 Difference]: Finished difference Result 5314 states and 6261 transitions. [2020-11-06 22:33:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 22:33:38,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-11-06 22:33:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:38,680 INFO L225 Difference]: With dead ends: 5314 [2020-11-06 22:33:38,680 INFO L226 Difference]: Without dead ends: 3079 [2020-11-06 22:33:38,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:33:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2020-11-06 22:33:38,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 3061. [2020-11-06 22:33:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2020-11-06 22:33:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 3548 transitions. [2020-11-06 22:33:38,791 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 3548 transitions. Word has length 160 [2020-11-06 22:33:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:38,791 INFO L481 AbstractCegarLoop]: Abstraction has 3061 states and 3548 transitions. [2020-11-06 22:33:38,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:33:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 3548 transitions. [2020-11-06 22:33:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-11-06 22:33:38,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:38,802 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:39,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:39,017 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash 519565357, now seen corresponding path program 1 times [2020-11-06 22:33:39,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:39,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626756424] [2020-11-06 22:33:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:39,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-11-06 22:33:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:33:39,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626756424] [2020-11-06 22:33:39,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566052174] [2020-11-06 22:33:39,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:39,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:39,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:33:39,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:39,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:33:39,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341742341] [2020-11-06 22:33:39,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:33:39,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:39,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:33:39,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:33:39,492 INFO L87 Difference]: Start difference. First operand 3061 states and 3548 transitions. Second operand 10 states. [2020-11-06 22:33:39,835 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-11-06 22:33:40,203 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-11-06 22:33:41,974 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-11-06 22:33:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:44,195 INFO L93 Difference]: Finished difference Result 9047 states and 10636 transitions. [2020-11-06 22:33:44,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-06 22:33:44,196 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-11-06 22:33:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:44,222 INFO L225 Difference]: With dead ends: 9047 [2020-11-06 22:33:44,222 INFO L226 Difference]: Without dead ends: 5434 [2020-11-06 22:33:44,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:33:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2020-11-06 22:33:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 4699. [2020-11-06 22:33:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4699 states. [2020-11-06 22:33:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4699 states to 4699 states and 5351 transitions. [2020-11-06 22:33:44,377 INFO L78 Accepts]: Start accepts. Automaton has 4699 states and 5351 transitions. Word has length 170 [2020-11-06 22:33:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:44,377 INFO L481 AbstractCegarLoop]: Abstraction has 4699 states and 5351 transitions. [2020-11-06 22:33:44,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:33:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4699 states and 5351 transitions. [2020-11-06 22:33:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-11-06 22:33:44,392 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:44,393 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:44,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-06 22:33:44,607 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:44,608 INFO L82 PathProgramCache]: Analyzing trace with hash 112335379, now seen corresponding path program 1 times [2020-11-06 22:33:44,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:44,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436300105] [2020-11-06 22:33:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:33:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-06 22:33:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-06 22:33:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-11-06 22:33:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 90 proven. 38 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-06 22:33:44,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436300105] [2020-11-06 22:33:44,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946434640] [2020-11-06 22:33:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:45,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:45,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-06 22:33:45,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:45,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-11-06 22:33:45,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67447556] [2020-11-06 22:33:45,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:33:45,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:45,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:33:45,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:33:45,131 INFO L87 Difference]: Start difference. First operand 4699 states and 5351 transitions. Second operand 11 states. [2020-11-06 22:33:49,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:49,962 INFO L93 Difference]: Finished difference Result 12688 states and 15137 transitions. [2020-11-06 22:33:49,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-06 22:33:49,962 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2020-11-06 22:33:49,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:50,006 INFO L225 Difference]: With dead ends: 12688 [2020-11-06 22:33:50,006 INFO L226 Difference]: Without dead ends: 8404 [2020-11-06 22:33:50,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=302, Invalid=1258, Unknown=0, NotChecked=0, Total=1560 [2020-11-06 22:33:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2020-11-06 22:33:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 7634. [2020-11-06 22:33:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7634 states. [2020-11-06 22:33:50,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 8539 transitions. [2020-11-06 22:33:50,259 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 8539 transitions. Word has length 198 [2020-11-06 22:33:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:50,259 INFO L481 AbstractCegarLoop]: Abstraction has 7634 states and 8539 transitions. [2020-11-06 22:33:50,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:33:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 8539 transitions. [2020-11-06 22:33:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-11-06 22:33:50,285 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:33:50,285 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:33:50,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:50,498 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:33:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:33:50,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1390529629, now seen corresponding path program 1 times [2020-11-06 22:33:50,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:33:50,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434174781] [2020-11-06 22:33:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:33:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:33:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:33:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:33:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-11-06 22:33:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-11-06 22:33:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-11-06 22:33:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-11-06 22:33:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 173 proven. 46 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-11-06 22:33:50,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434174781] [2020-11-06 22:33:50,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031540588] [2020-11-06 22:33:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:33:51,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:33:51,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:33:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 217 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-11-06 22:33:51,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:33:51,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2020-11-06 22:33:51,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484880417] [2020-11-06 22:33:51,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-06 22:33:51,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:33:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-06 22:33:51,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-11-06 22:33:51,100 INFO L87 Difference]: Start difference. First operand 7634 states and 8539 transitions. Second operand 11 states. [2020-11-06 22:33:51,687 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:33:52,955 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-06 22:33:54,948 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-06 22:33:56,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:33:56,363 INFO L93 Difference]: Finished difference Result 14136 states and 16087 transitions. [2020-11-06 22:33:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-06 22:33:56,363 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2020-11-06 22:33:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:33:56,365 INFO L225 Difference]: With dead ends: 14136 [2020-11-06 22:33:56,365 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:33:56,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=295, Invalid=1187, Unknown=0, NotChecked=0, Total=1482 [2020-11-06 22:33:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:33:56,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:33:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:33:56,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:33:56,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2020-11-06 22:33:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:33:56,395 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:33:56,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-06 22:33:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:33:56,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:33:56,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:33:56,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:33:58,545 WARN L194 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 289 [2020-11-06 22:33:59,306 WARN L194 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 289 [2020-11-06 22:34:02,291 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 237 DAG size of output: 79 [2020-11-06 22:34:03,951 WARN L194 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 257 DAG size of output: 72 [2020-11-06 22:34:04,091 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-11-06 22:34:05,725 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 257 DAG size of output: 72 [2020-11-06 22:34:06,397 WARN L194 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 59 [2020-11-06 22:34:06,403 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:34:06,403 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:34:06,403 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:34:06,404 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:34:06,404 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:34:06,407 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= ~y~0 |old(~y~0)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-11-06 22:34:06,407 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:34:06,407 INFO L266 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,407 INFO L266 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-11-06 22:34:06,409 INFO L266 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-11-06 22:34:06,410 INFO L266 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-11-06 22:34:06,410 INFO L266 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-11-06 22:34:06,410 INFO L266 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,411 INFO L266 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-11-06 22:34:06,412 INFO L266 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-11-06 22:34:06,413 INFO L266 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-11-06 22:34:06,414 INFO L266 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-11-06 22:34:06,415 INFO L266 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-11-06 22:34:06,416 INFO L266 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-11-06 22:34:06,416 INFO L266 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-11-06 22:34:06,416 INFO L266 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-11-06 22:34:06,416 INFO L266 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-11-06 22:34:06,418 INFO L266 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,419 INFO L266 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-11-06 22:34:06,420 INFO L266 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-11-06 22:34:06,421 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,422 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,422 INFO L266 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-11-06 22:34:06,422 INFO L266 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-11-06 22:34:06,422 INFO L266 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,423 INFO L266 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-11-06 22:34:06,424 INFO L266 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-11-06 22:34:06,425 INFO L266 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-11-06 22:34:06,425 INFO L266 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-11-06 22:34:06,425 INFO L266 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-11-06 22:34:06,425 INFO L266 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-11-06 22:34:06,426 INFO L266 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L262 CegarLoopResult]: At program point L487(line 487) the Hoare annotation is: (let ((.cse7 (= |old(~a7~0)| 1)) (.cse9 (not (<= 5 |old(~a16~0)|))) (.cse4 (not (= |old(~a17~0)| 1))) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse0 (not (= |old(~a20~0)| 1))) (.cse3 (not (= |old(~a7~0)| 0))) (.cse8 (not (<= |old(~a16~0)| 4))) (.cse10 (not (<= |old(~a8~0)| 14))) (.cse2 (not (= |old(~a21~0)| 1))) (.cse6 (not (<= |old(~a20~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6 .cse7) (or .cse4 .cse8 .cse2 .cse7) (or .cse9 .cse0 .cse1 .cse2 .cse7) (or .cse0 .cse8 .cse10 .cse2 .cse3) (or .cse4 .cse11) (or .cse11 .cse1 (not (<= 6 |old(~a16~0)|))) (or .cse11 .cse8 .cse1) (or .cse9 .cse5 .cse10 .cse1 .cse2) (or .cse11 .cse8 .cse2) (or .cse4 .cse5 .cse0 .cse2 .cse3) (or .cse4 .cse2 .cse3 .cse6) (or .cse1 .cse2 .cse3 .cse6) (or .cse5 .cse1 .cse2 .cse6) (or .cse11 .cse0 .cse2 .cse3) (or .cse8 .cse10 .cse2 .cse6))) [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L487-1(line 487) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-11-06 22:34:06,427 INFO L266 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,428 INFO L266 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,428 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse13 (= ~a7~0 |old(~a7~0)|)) (.cse12 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 1)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse16 (= ~a16~0 |old(~a16~0)|)) (.cse17 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (and .cse12 .cse20 .cse15 .cse16 .cse17 (= ~a7~0 0))) (.cse10 (not (= |old(~a7~0)| 0))) (.cse9 (not (= |old(~a20~0)| 1))) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse4 (not (<= |old(~a20~0)| 0))) (.cse5 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a16~0)| 4))) (.cse7 (= |old(~a7~0)| 1)) (.cse19 (not (<= 5 |old(~a16~0)|))) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a8~0)| 14))) (.cse18 (not (<= |old(~a17~0)| 0))) (.cse3 (not (= |old(~a21~0)| 1))) (.cse2 (and .cse13 .cse12 .cse20 .cse15 .cse16 .cse17))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse2 .cse3 .cse4 .cse7) (or .cse8 .cse9 .cse0 .cse1 .cse3 .cse10) (or .cse5 .cse8 .cse6 .cse9 .cse3 .cse10) (or (and (or .cse11 (not (<= 6 |old(~a16~0)|))) (or .cse11 .cse0)) (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17) .cse18) (or .cse8 .cse11 .cse9 .cse3 .cse10) (or .cse8 .cse18 .cse3 .cse10 .cse4) (or .cse5 .cse8 .cse3 .cse10 .cse4) (or .cse8 .cse9 .cse18 .cse3 .cse10) (or .cse19 .cse9 .cse18 .cse2 .cse3 .cse7) (or .cse11 .cse0 .cse2 .cse3) (or .cse5 .cse11 (and .cse13 .cse12 .cse14 .cse15 .cse16 .cse17)) (or .cse6 .cse18 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3 .cse7) (or .cse19 .cse6 .cse1 .cse18 .cse3 .cse2)))) [2020-11-06 22:34:06,428 INFO L266 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,428 INFO L266 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,428 INFO L266 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,428 INFO L266 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-11-06 22:34:06,429 INFO L266 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-11-06 22:34:06,430 INFO L266 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,431 INFO L266 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-11-06 22:34:06,432 INFO L266 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:34:06,433 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a20~0 1) (<= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-11-06 22:34:06,434 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:34:06,434 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:34:06,434 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-11-06 22:34:06,434 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:34:06,434 INFO L262 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse3 (= ~a17~0 1)) (.cse6 (<= ~a20~0 0)) (.cse9 (<= ~a8~0 14)) (.cse5 (<= ~a16~0 5)) (.cse4 (= ~a7~0 0)) (.cse7 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse8 (<= ~a17~0 0)) (.cse10 (= ~a20~0 1)) (.cse11 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse0 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (and .cse7 .cse3) (and .cse0 .cse1 .cse7) (and (or (and (<= 6 ~a16~0) .cse7) (and .cse1 .cse7)) .cse8) (not (= |old(~a20~0)| 1)) (and .cse0 .cse8 .cse4 .cse6) (and .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse9 .cse0 .cse1 .cse6) (not (= |old(~a21~0)| 1)) (and .cse0 .cse5 .cse8 .cse6) (and .cse0 .cse1 .cse8 .cse10 (<= ~a8~0 |old(~a8~0)|) .cse4) (not (= |old(~a17~0)| 1)) (and .cse0 .cse4 .cse3 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse0 .cse5 .cse8 .cse11) (and .cse0 .cse10 .cse4 .cse7) (and .cse0 .cse8 .cse10 .cse11 .cse2) (not (= |old(~a7~0)| 0)))) [2020-11-06 22:34:06,434 INFO L266 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-11-06 22:34:06,435 INFO L266 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-06 22:34:06,435 INFO L262 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 4)) (.cse3 (= ~a17~0 1)) (.cse6 (<= ~a20~0 0)) (.cse9 (<= ~a8~0 14)) (.cse5 (<= ~a16~0 5)) (.cse4 (= ~a7~0 0)) (.cse7 (<= ~a8~0 13)) (.cse0 (= ~a21~0 1)) (.cse8 (<= ~a17~0 0)) (.cse10 (= ~a20~0 1)) (.cse11 (<= 5 ~a16~0)) (.cse2 (not (= ~a7~0 1)))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and (= ~a17~0 |old(~a17~0)|) .cse0 (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse6) (and .cse7 .cse3) (and .cse0 .cse1 .cse7) (and (or (and (<= 6 ~a16~0) .cse7) (and .cse1 .cse7)) .cse8) (not (= |old(~a20~0)| 1)) (and .cse0 .cse8 .cse4 .cse6) (and .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse9 .cse0 .cse1 .cse6) (not (= |old(~a21~0)| 1)) (and .cse0 .cse5 .cse8 .cse6) (and .cse0 .cse1 .cse8 .cse10 (<= ~a8~0 |old(~a8~0)|) .cse4) (not (= |old(~a17~0)| 1)) (and .cse0 .cse4 .cse3 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse0 .cse5 .cse8 .cse11) (and .cse0 .cse10 .cse4 .cse7) (and .cse0 .cse8 .cse10 .cse11 .cse2) (not (= |old(~a7~0)| 0)))) [2020-11-06 22:34:06,435 INFO L266 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:34:06,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:34:06 BoogieIcfgContainer [2020-11-06 22:34:06,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:34:06,482 INFO L168 Benchmark]: Toolchain (without parser) took 44244.88 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 105.3 MB in the beginning and 278.6 MB in the end (delta: -173.3 MB). Peak memory consumption was 397.8 MB. Max. memory is 8.0 GB. [2020-11-06 22:34:06,484 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:34:06,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 806.56 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 122.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:34:06,487 INFO L168 Benchmark]: Boogie Preprocessor took 115.31 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 118.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:34:06,489 INFO L168 Benchmark]: RCFGBuilder took 1185.68 ms. Allocated memory is still 151.0 MB. Free memory was 118.2 MB in the beginning and 72.4 MB in the end (delta: 45.7 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:34:06,490 INFO L168 Benchmark]: TraceAbstraction took 42124.20 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 72.4 MB in the beginning and 278.6 MB in the end (delta: -206.2 MB). Peak memory consumption was 364.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:34:06,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 806.56 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 122.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.31 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 118.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1185.68 ms. Allocated memory is still 151.0 MB. Free memory was 118.2 MB in the beginning and 72.4 MB in the end (delta: 45.7 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 42124.20 ms. Allocated memory was 151.0 MB in the beginning and 692.1 MB in the end (delta: 541.1 MB). Free memory was 72.4 MB in the beginning and 278.6 MB in the end (delta: -206.2 MB). Peak memory consumption was 364.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(5 <= \old(a16)) || (((a21 == 1 && a16 <= 4) && !(a7 == 1)) && a17 == 1)) || (((((a17 == \old(a17) && a21 == 1) && a20 == \old(a20)) && a16 == \old(a16)) && a8 == \old(a8)) && a7 == 0)) || ((((a21 == 1 && a16 <= 5) && !(a7 == 1)) && a17 == 1) && a20 <= 0)) || (a8 <= 13 && a17 == 1)) || ((a21 == 1 && a16 <= 4) && a8 <= 13)) || (((6 <= a16 && a8 <= 13) || (a16 <= 4 && a8 <= 13)) && a17 <= 0)) || !(\old(a20) == 1)) || (((a21 == 1 && a17 <= 0) && a7 == 0) && a20 <= 0)) || ((((a21 == 1 && a8 <= 14) && a16 <= 4) && a20 == 1) && a7 == 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 4) && a20 <= 0)) || !(\old(a21) == 1)) || (((a21 == 1 && a16 <= 5) && a17 <= 0) && a20 <= 0)) || (((((a21 == 1 && a16 <= 4) && a17 <= 0) && a20 == 1) && a8 <= \old(a8)) && a7 == 0)) || !(\old(a17) == 1)) || (((a21 == 1 && a7 == 0) && a17 == 1) && a20 <= 0)) || !(\old(a16) <= 5)) || ((((a8 <= 14 && a21 == 1) && a16 <= 5) && a17 <= 0) && 5 <= a16)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a8 <= 13)) || ((((a21 == 1 && a17 <= 0) && a20 == 1) && 5 <= a16) && !(a7 == 1))) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.1s, OverallIterations: 9, TraceHistogramMax: 7, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 701 SDtfs, 5588 SDslu, 739 SDs, 0 SdLazy, 12948 SolverSat, 1833 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1469 GetRequests, 1302 SyntacticMatches, 3 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7634occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1883 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 497 PreInvPairs, 681 NumberOfFragments, 1464 HoareAnnotationTreeSize, 497 FomulaSimplifications, 298144 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 24922 FormulaSimplificationTreeSizeReductionInter, 6.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2618 NumberOfCodeBlocks, 2618 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2602 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173715 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3979 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 1434/1571 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...