/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:55:38,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:55:38,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:55:38,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 21:55:38,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 21:55:38,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 21:55:38,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 21:55:38,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 21:55:38,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 21:55:38,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 21:55:38,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 21:55:38,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 21:55:38,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 21:55:38,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 21:55:38,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 21:55:38,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 21:55:38,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 21:55:38,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 21:55:38,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 21:55:38,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 21:55:38,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-02-19 21:55:38,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:55:38,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:55:38,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:55:38,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:55:38,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:55:38,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:55:38,169 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:55:38,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:55:38,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:55:38,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:55:38,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:55:38,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:55:38,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:55:38,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:55:38,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:55:38,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:55:38,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:55:38,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:55:38,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:55:38,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:55:38,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:55:38,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:55:38,174 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:55:38,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:55:38,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:55:38,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:55:38,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:55:38,520 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:55:38,521 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:55:38,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl [2021-02-19 21:55:38,522 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl' [2021-02-19 21:55:38,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:55:38,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:55:38,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:55:38,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:55:38,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:55:38,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:55:38,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:55:38,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:55:38,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:55:38,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/1) ... [2021-02-19 21:55:38,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:55:38,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:55:38,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:55:38,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:55:38,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (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 [2021-02-19 21:55:38,761 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:55:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:55:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:55:38,761 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:55:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:55:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:55:38,762 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:55:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:55:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:55:38,762 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 21:55:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 21:55:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 21:55:38,763 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:55:39,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:55:39,053 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 21:55:39,054 INFO L202 PluginConnector]: Adding new model three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:55:39 BoogieIcfgContainer [2021-02-19 21:55:39,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:55:39,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:55:39,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:55:39,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:55:39,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:55:38" (1/2) ... [2021-02-19 21:55:39,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ddf2c6 and model type three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:55:39, skipping insertion in model container [2021-02-19 21:55:39,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:55:39" (2/2) ... [2021-02-19 21:55:39,060 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum.wvr.bpl [2021-02-19 21:55:39,064 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:55:39,064 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:55:39,087 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:55:39,088 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:55:39,121 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 21:55:39,136 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-02-19 21:55:39,182 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:55:39,182 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:55:39,182 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 21:55:39,182 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:55:39,182 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:55:39,182 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:55:39,182 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:55:39,182 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 21:55:39,327 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:39,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:39,335 INFO L82 PathProgramCache]: Analyzing trace with hash 23925323, now seen corresponding path program 1 times [2021-02-19 21:55:39,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:39,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124826113] [2021-02-19 21:55:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 21:55:39,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124826113] [2021-02-19 21:55:39,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:55:39,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 21:55:39,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492789049] [2021-02-19 21:55:39,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 21:55:39,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:39,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 21:55:39,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 21:55:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:39,546 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:39,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:39,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:39,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 21:55:39,663 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:39,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2014534227, now seen corresponding path program 1 times [2021-02-19 21:55:39,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:39,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026400356] [2021-02-19 21:55:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:39,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:55:39,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026400356] [2021-02-19 21:55:39,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997279677] [2021-02-19 21:55:39,746 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 [2021-02-19 21:55:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:39,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 21:55:39,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 21:55:39,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-02-19 21:55:39,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2021-02-19 21:55:39,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820370995] [2021-02-19 21:55:39,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 21:55:39,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:39,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 21:55:39,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-19 21:55:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:39,909 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:39,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:39,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:39,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:55:40,203 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:40,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1570288952, now seen corresponding path program 1 times [2021-02-19 21:55:40,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:40,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740728307] [2021-02-19 21:55:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-02-19 21:55:40,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740728307] [2021-02-19 21:55:40,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:55:40,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 21:55:40,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088782302] [2021-02-19 21:55:40,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 21:55:40,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:40,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 21:55:40,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 21:55:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:40,261 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:40,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:40,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:40,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 21:55:40,343 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:40,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:40,344 INFO L82 PathProgramCache]: Analyzing trace with hash 178558987, now seen corresponding path program 2 times [2021-02-19 21:55:40,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:40,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587804660] [2021-02-19 21:55:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:55:40,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587804660] [2021-02-19 21:55:40,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343744688] [2021-02-19 21:55:40,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2021-02-19 21:55:40,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:55:40,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:55:40,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 21:55:40,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 21:55:40,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:55:40,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-02-19 21:55:40,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306755146] [2021-02-19 21:55:40,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 21:55:40,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:40,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 21:55:40,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-02-19 21:55:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:40,573 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:40,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:40,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:40,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:40,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:41,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:55:41,107 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:41,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1494481843, now seen corresponding path program 3 times [2021-02-19 21:55:41,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:41,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202400481] [2021-02-19 21:55:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:55:41,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202400481] [2021-02-19 21:55:41,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367877046] [2021-02-19 21:55:41,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-02-19 21:55:41,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 21:55:41,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:55:41,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 33 conjunts are in the unsatisfiable core [2021-02-19 21:55:41,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:41,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-02-19 21:55:41,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,755 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:41,756 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,756 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:47 [2021-02-19 21:55:41,818 INFO L446 ElimStorePlain]: Different costs {1=[v_C_11], 5=[A, B]} [2021-02-19 21:55:41,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:41,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 21:55:41,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,837 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:41,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:41,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 21:55:41,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2021-02-19 21:55:41,850 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:41,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:41,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 21:55:41,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2021-02-19 21:55:41,873 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:41,879 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,879 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:54, output treesize:20 [2021-02-19 21:55:41,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2021-02-19 21:55:41,960 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:41,965 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:41,965 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:11 [2021-02-19 21:55:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:55:42,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:55:42,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-19 21:55:42,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422818362] [2021-02-19 21:55:42,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-19 21:55:42,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:42,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-19 21:55:42,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-02-19 21:55:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:42,005 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:42,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:42,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:55:42,334 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:42,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:42,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1352720597, now seen corresponding path program 4 times [2021-02-19 21:55:42,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:42,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534098832] [2021-02-19 21:55:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 21:55:42,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534098832] [2021-02-19 21:55:42,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810625018] [2021-02-19 21:55:42,427 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-02-19 21:55:42,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 21:55:42,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:55:42,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 21:55:42,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-02-19 21:55:42,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:55:42,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-02-19 21:55:42,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587657471] [2021-02-19 21:55:42,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-19 21:55:42,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:42,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-19 21:55:42,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-02-19 21:55:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:42,575 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:42,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:42,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:42,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:42,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:42,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:42,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:55:43,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-02-19 21:55:43,482 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:43,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1292096975, now seen corresponding path program 5 times [2021-02-19 21:55:43,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:43,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126178169] [2021-02-19 21:55:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-19 21:55:43,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126178169] [2021-02-19 21:55:43,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504579582] [2021-02-19 21:55:43,581 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-02-19 21:55:43,633 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-02-19 21:55:43,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:55:43,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2021-02-19 21:55:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-02-19 21:55:43,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:55:43,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-02-19 21:55:43,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074417850] [2021-02-19 21:55:43,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 21:55:43,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:55:43,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 21:55:43,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-02-19 21:55:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:43,816 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:55:43,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 21:55:43,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:43,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:43,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:43,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:43,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:43,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:55:43,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:55:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:55:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:55:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:55:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 21:55:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-19 21:55:44,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:55:44,654 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:55:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:55:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1435183219, now seen corresponding path program 6 times [2021-02-19 21:55:44,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:55:44,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586457813] [2021-02-19 21:55:44,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:55:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:55:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:55:45,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586457813] [2021-02-19 21:55:45,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877655188] [2021-02-19 21:55:45,392 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-02-19 21:55:45,426 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-02-19 21:55:45,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:55:45,427 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 63 conjunts are in the unsatisfiable core [2021-02-19 21:55:45,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:55:45,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 21:55:45,622 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,632 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:45,633 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,633 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 21:55:45,706 INFO L354 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2021-02-19 21:55:45,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 21:55:45,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:45,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,724 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:66, output treesize:65 [2021-02-19 21:55:45,812 INFO L354 Elim1Store]: treesize reduction 72, result has 15.3 percent of original size [2021-02-19 21:55:45,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-02-19 21:55:45,815 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:45,834 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 21:55:45,834 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:83, output treesize:82 [2021-02-19 21:55:45,979 INFO L446 ElimStorePlain]: Different costs {6=[v_C_15], 22=[A, B]} [2021-02-19 21:55:45,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:45,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:45,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,003 INFO L354 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2021-02-19 21:55:46,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 66 [2021-02-19 21:55:46,006 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 21:55:46,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:46,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,151 INFO L354 Elim1Store]: treesize reduction 28, result has 75.2 percent of original size [2021-02-19 21:55:46,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 136 [2021-02-19 21:55:46,226 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-02-19 21:55:46,309 INFO L628 ElimStorePlain]: treesize reduction 575, result has 11.0 percent of original size [2021-02-19 21:55:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 21:55:46,387 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 21:55:46,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 57 treesize of output 149 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown