/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:09:37,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:09:37,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:09:37,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:09:37,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:09:37,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:09:37,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:09:37,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:09:37,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:09:37,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:09:37,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:09:37,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:09:37,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:09:37,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:09:37,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:09:37,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:09:37,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:09:37,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:09:37,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:09:37,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:09:37,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:09:37,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:09:37,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:09:37,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:09:37,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:09:37,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:09:37,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:09:37,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:09:37,552 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 [2019-11-23 22:09:37,570 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:09:37,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:09:37,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:09:37,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:09:37,573 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:09:37,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:09:37,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:09:37,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:09:37,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:09:37,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:09:37,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:09:37,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:09:37,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:09:37,575 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:09:37,576 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:09:37,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:09:37,576 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:09:37,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:09:37,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:09:37,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:09:37,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:09:37,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:09:37,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:09:37,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:09:37,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:09:37,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:09:37,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:09:37,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:09:37,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:09:37,579 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:09:37,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:09:37,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:09:37,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:09:37,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:09:37,864 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:09:37,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-11-23 22:09:37,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0413af1/c6ed6771311e4066a78f0ef380d8178a/FLAG6e3c88391 [2019-11-23 22:09:38,428 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:09:38,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-11-23 22:09:38,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0413af1/c6ed6771311e4066a78f0ef380d8178a/FLAG6e3c88391 [2019-11-23 22:09:38,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca0413af1/c6ed6771311e4066a78f0ef380d8178a [2019-11-23 22:09:38,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:09:38,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:09:38,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:09:38,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:09:38,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:09:38,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:09:38" (1/1) ... [2019-11-23 22:09:38,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634ba95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:38, skipping insertion in model container [2019-11-23 22:09:38,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:09:38" (1/1) ... [2019-11-23 22:09:38,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:09:38,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:09:39,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:09:39,324 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:09:39,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:09:39,445 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:09:39,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39 WrapperNode [2019-11-23 22:09:39,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:09:39,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:09:39,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:09:39,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:09:39,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:09:39,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:09:39,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:09:39,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:09:39,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (1/1) ... [2019-11-23 22:09:39,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:09:39,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:09:39,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:09:39,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:09:39,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (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 [2019-11-23 22:09:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-23 22:09:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-23 22:09:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-23 22:09:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:09:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:09:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:09:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:09:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:09:40,748 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:09:40,749 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-23 22:09:40,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:09:40 BoogieIcfgContainer [2019-11-23 22:09:40,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:09:40,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:09:40,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:09:40,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:09:40,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:09:38" (1/3) ... [2019-11-23 22:09:40,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0f9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:09:40, skipping insertion in model container [2019-11-23 22:09:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:09:39" (2/3) ... [2019-11-23 22:09:40,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0f9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:09:40, skipping insertion in model container [2019-11-23 22:09:40,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:09:40" (3/3) ... [2019-11-23 22:09:40,758 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2019-11-23 22:09:40,767 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:09:40,774 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:09:40,786 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:09:40,809 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:09:40,809 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:09:40,809 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:09:40,809 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:09:40,809 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:09:40,810 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:09:40,810 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:09:40,810 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:09:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-23 22:09:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-23 22:09:40,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:09:40,833 INFO L410 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] [2019-11-23 22:09:40,833 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:09:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:09:40,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1997100867, now seen corresponding path program 1 times [2019-11-23 22:09:40,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:09:40,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719861636] [2019-11-23 22:09:40,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:09:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:09:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:41,911 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719861636] [2019-11-23 22:09:41,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:09:41,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-11-23 22:09:41,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392335585] [2019-11-23 22:09:41,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-23 22:09:41,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:09:41,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-23 22:09:41,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-23 22:09:41,940 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 17 states. [2019-11-23 22:09:42,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:09:42,810 INFO L93 Difference]: Finished difference Result 95 states and 129 transitions. [2019-11-23 22:09:42,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-23 22:09:42,812 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2019-11-23 22:09:42,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:09:42,822 INFO L225 Difference]: With dead ends: 95 [2019-11-23 22:09:42,823 INFO L226 Difference]: Without dead ends: 53 [2019-11-23 22:09:42,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-11-23 22:09:42,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-23 22:09:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2019-11-23 22:09:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-23 22:09:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2019-11-23 22:09:42,863 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2019-11-23 22:09:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:09:42,864 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2019-11-23 22:09:42,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-23 22:09:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2019-11-23 22:09:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-23 22:09:42,866 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:09:42,866 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-23 22:09:42,867 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:09:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:09:42,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1678604412, now seen corresponding path program 1 times [2019-11-23 22:09:42,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:09:42,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214511801] [2019-11-23 22:09:42,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:09:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:09:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:43,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214511801] [2019-11-23 22:09:43,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682588061] [2019-11-23 22:09:43,334 INFO L94 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 [2019-11-23 22:09:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:09:43,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-23 22:09:43,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:09:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:43,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:09:43,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 19 [2019-11-23 22:09:43,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444540095] [2019-11-23 22:09:43,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-23 22:09:43,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:09:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-23 22:09:43,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2019-11-23 22:09:43,633 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 19 states. [2019-11-23 22:09:44,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:09:44,593 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2019-11-23 22:09:44,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-23 22:09:44,594 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2019-11-23 22:09:44,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:09:44,596 INFO L225 Difference]: With dead ends: 61 [2019-11-23 22:09:44,596 INFO L226 Difference]: Without dead ends: 58 [2019-11-23 22:09:44,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2019-11-23 22:09:44,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-23 22:09:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2019-11-23 22:09:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-23 22:09:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2019-11-23 22:09:44,603 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2019-11-23 22:09:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:09:44,604 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2019-11-23 22:09:44,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-23 22:09:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2019-11-23 22:09:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-23 22:09:44,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:09:44,606 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-23 22:09:44,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:09:44,810 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:09:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:09:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1430637853, now seen corresponding path program 2 times [2019-11-23 22:09:44,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:09:44,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168073743] [2019-11-23 22:09:44,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:09:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:09:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:45,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168073743] [2019-11-23 22:09:45,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619593743] [2019-11-23 22:09:45,200 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2019-11-23 22:09:45,749 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-23 22:09:45,749 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:09:45,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-23 22:09:45,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:09:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:45,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:09:45,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 20 [2019-11-23 22:09:45,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185432998] [2019-11-23 22:09:45,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-23 22:09:45,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:09:45,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-23 22:09:45,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2019-11-23 22:09:45,807 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 20 states. [2019-11-23 22:09:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:09:46,910 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2019-11-23 22:09:46,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-23 22:09:46,911 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 54 [2019-11-23 22:09:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:09:46,912 INFO L225 Difference]: With dead ends: 66 [2019-11-23 22:09:46,913 INFO L226 Difference]: Without dead ends: 63 [2019-11-23 22:09:46,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2019-11-23 22:09:46,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-23 22:09:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2019-11-23 22:09:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-23 22:09:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2019-11-23 22:09:46,932 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 54 [2019-11-23 22:09:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:09:46,933 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2019-11-23 22:09:46,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-23 22:09:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2019-11-23 22:09:46,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-23 22:09:46,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:09:46,935 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:09:47,140 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:09:47,141 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:09:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:09:47,142 INFO L82 PathProgramCache]: Analyzing trace with hash 994778916, now seen corresponding path program 3 times [2019-11-23 22:09:47,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:09:47,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157490733] [2019-11-23 22:09:47,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:09:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:09:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:09:47,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157490733] [2019-11-23 22:09:47,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400899401] [2019-11-23 22:09:47,662 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-23 22:09:48,661 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-23 22:09:48,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 22:09:48,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-23 22:09:48,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:09:48,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:09:48,855 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 22:09:48,856 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-23 22:09:48,875 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-23 22:09:48,876 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2019-11-23 22:09:48,876 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-23 22:09:48,898 INFO L567 ElimStorePlain]: treesize reduction 5, result has 84.8 percent of original size [2019-11-23 22:09:48,899 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-23 22:09:48,899 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:82, output treesize:28 [2019-11-23 22:09:48,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:09:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-23 22:09:49,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:09:49,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9] total 27 [2019-11-23 22:09:49,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93686218] [2019-11-23 22:09:49,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-23 22:09:49,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:09:49,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-23 22:09:49,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2019-11-23 22:09:49,096 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 27 states. [2019-11-23 22:09:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:09:51,997 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2019-11-23 22:09:51,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-23 22:09:51,998 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 59 [2019-11-23 22:09:51,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:09:51,999 INFO L225 Difference]: With dead ends: 68 [2019-11-23 22:09:51,999 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:09:52,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=314, Invalid=2338, Unknown=0, NotChecked=0, Total=2652 [2019-11-23 22:09:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:09:52,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:09:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:09:52,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:09:52,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2019-11-23 22:09:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:09:52,003 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:09:52,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-23 22:09:52,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:09:52,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:09:52,206 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:09:52,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:09:52,379 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2019-11-23 22:09:52,387 INFO L447 ceAbstractionStarter]: At program point L630(lines 134 634) the Hoare annotation is: true [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L275(lines 275 568) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L242(lines 242 586) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L465(line 465) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 592) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L284(lines 284 563) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L301(lines 301 551) no Hoare annotation was computed. [2019-11-23 22:09:52,387 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 569) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L260(lines 260 575) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L310(lines 310 546) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L327(lines 327 534) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L294(lines 294 552) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L162(lines 162 633) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 558) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L336(lines 336 529) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 517) no Hoare annotation was computed. [2019-11-23 22:09:52,388 INFO L444 ceAbstractionStarter]: For program point L320(lines 320 535) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 541) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L180(lines 180 631) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L362(lines 362 512) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 619) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L379(lines 379 500) no Hoare annotation was computed. [2019-11-23 22:09:52,389 INFO L444 ceAbstractionStarter]: For program point L346(lines 346 518) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 465) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L338(lines 338 524) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L206(lines 206 614) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L421(lines 421 478) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L388(lines 388 495) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 602) no Hoare annotation was computed. [2019-11-23 22:09:52,390 INFO L444 ceAbstractionStarter]: For program point L190(lines 190 620) no Hoare annotation was computed. [2019-11-23 22:09:52,391 INFO L440 ceAbstractionStarter]: At program point L446(lines 406 479) the Hoare annotation is: (let ((.cse5 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296))) (let ((.cse0 (< .cse5 42)) (.cse1 (= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) (.cse2 (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492))))) (or (and (<= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= 9 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2 (<= ~Id_MCDC_93~0 9) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (let ((.cse3 (mod (+ ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (let ((.cse4 (* .cse3 12))) (and (< .cse3 42) (= ~__tmp_1075_2~0.offset .cse4) .cse0 .cse1 (not (= (* .cse5 12) 492)) (not (= 492 .cse4)) .cse2)))))) [2019-11-23 22:09:52,391 INFO L444 ceAbstractionStarter]: For program point L182(lines 182 626) no Hoare annotation was computed. [2019-11-23 22:09:52,391 INFO L444 ceAbstractionStarter]: For program point L438(lines 438 451) no Hoare annotation was computed. [2019-11-23 22:09:52,391 INFO L444 ceAbstractionStarter]: For program point L405(lines 405 483) no Hoare annotation was computed. [2019-11-23 22:09:52,391 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 501) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L463(lines 463 471) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L364(lines 364 507) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 597) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L249(lines 249 585) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L216(lines 216 603) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 609) no Hoare annotation was computed. [2019-11-23 22:09:52,392 INFO L444 ceAbstractionStarter]: For program point L431(lines 431 452) no Hoare annotation was computed. [2019-11-23 22:09:52,393 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 484) no Hoare annotation was computed. [2019-11-23 22:09:52,393 INFO L444 ceAbstractionStarter]: For program point L423(lines 423 473) no Hoare annotation was computed. [2019-11-23 22:09:52,393 INFO L444 ceAbstractionStarter]: For program point L390(lines 390 490) no Hoare annotation was computed. [2019-11-23 22:09:52,393 INFO L444 ceAbstractionStarter]: For program point L258(lines 258 580) no Hoare annotation was computed. [2019-11-23 22:09:52,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:09:52 BoogieIcfgContainer [2019-11-23 22:09:52,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:09:52,416 INFO L168 Benchmark]: Toolchain (without parser) took 13591.65 ms. Allocated memory was 146.3 MB in the beginning and 343.9 MB in the end (delta: 197.7 MB). Free memory was 101.8 MB in the beginning and 191.4 MB in the end (delta: -89.6 MB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,417 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 146.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 22:09:52,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.44 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 171.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.10 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,420 INFO L168 Benchmark]: Boogie Preprocessor took 84.09 ms. Allocated memory is still 203.4 MB. Free memory was 167.2 MB in the beginning and 162.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,421 INFO L168 Benchmark]: RCFGBuilder took 1130.76 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 162.4 MB in the beginning and 174.3 MB in the end (delta: -11.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,422 INFO L168 Benchmark]: TraceAbstraction took 11663.20 ms. Allocated memory was 235.4 MB in the beginning and 343.9 MB in the end (delta: 108.5 MB). Free memory was 174.3 MB in the beginning and 191.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:09:52,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 146.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 620.44 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 171.9 MB in the end (delta: -70.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 87.10 ms. Allocated memory is still 203.4 MB. Free memory was 171.9 MB in the beginning and 167.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.09 ms. Allocated memory is still 203.4 MB. Free memory was 167.2 MB in the beginning and 162.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1130.76 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 162.4 MB in the beginning and 174.3 MB in the end (delta: -11.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11663.20 ms. Allocated memory was 235.4 MB in the beginning and 343.9 MB in the end (delta: 108.5 MB). Free memory was 174.3 MB in the beginning and 191.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 465]: 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: 406]: Loop Invariant [2019-11-23 22:09:52,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-23 22:09:52,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((Id_MCDC_89__Id_MCDC_96 <= 9 && 9 <= Id_MCDC_89__Id_MCDC_96) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && 0 == Id_MCDC_89__Id_MCDC_95) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 <= 9) && 0 < Id_MCDC_93 / 4294967296 + 1) || (((((((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42 && __tmp_1075_2 == (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && 0 == Id_MCDC_89__Id_MCDC_95) && !((Id_MCDC_93 + 4294967295) % 4294967296 * 12 == 492)) && !(492 == (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12)) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Result: SAFE, OverallTime: 11.5s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 67 SDtfs, 356 SDslu, 739 SDs, 0 SdLazy, 3396 SolverSat, 127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 155 SyntacticMatches, 7 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 209 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 368 NumberOfCodeBlocks, 363 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 361 ConstructedInterpolants, 0 QuantifiedInterpolants, 149211 SizeOfPredicates, 19 NumberOfNonLiveVariables, 2059 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...