/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-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 04:45:52,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 04:45:52,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 04:45:52,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 04:45:52,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 04:45:52,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 04:45:52,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 04:45:52,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 04:45:52,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 04:45:52,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 04:45:52,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 04:45:52,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 04:45:52,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 04:45:52,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 04:45:52,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 04:45:52,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 04:45:52,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-07 04:45:52,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-07 04:45:52,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-07 04:45:52,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-07 04:45:52,248 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-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 04:45:52,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 04:45:52,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 04:45:52,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 04:45:52,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 04:45:52,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 04:45:52,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 04:45:52,279 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 04:45:52,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 04:45:52,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 04:45:52,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 04:45:52,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 04:45:52,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:45:52,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 04:45:52,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 04:45:52,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 04:45:52,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 04:45:52,282 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 04:45:52,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 04:45:52,282 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 04:45:52,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 04:45:52,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 04:45:52,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 04:45:52,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 04:45:52,561 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 04:45:52,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl [2021-06-07 04:45:52,561 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts.wvr.bpl' [2021-06-07 04:45:52,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 04:45:52,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 04:45:52,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 04:45:52,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 04:45:52,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 04:45:52,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 04:45:52,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 04:45:52,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 04:45:52,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 04:45:52,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/1) ... [2021-06-07 04:45:52,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 04:45:52,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 04:45:52,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 04:45:52,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 04:45:52,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (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 [2021-06-07 04:45:52,669 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 04:45:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 04:45:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 04:45:52,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 04:45:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 04:45:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 04:45:52,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 04:45:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 04:45:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 04:45:52,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 04:45:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 04:45:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 04:45:52,671 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 04:45:52,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 04:45:52,881 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 04:45:52,882 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:45:52 BoogieIcfgContainer [2021-06-07 04:45:52,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 04:45:52,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 04:45:52,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 04:45:52,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 04:45:52,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:45:52" (1/2) ... [2021-06-07 04:45:52,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12420878 and model type mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:45:52, skipping insertion in model container [2021-06-07 04:45:52,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:45:52" (2/2) ... [2021-06-07 04:45:52,888 INFO L111 eAbstractionObserver]: Analyzing ICFG mts.wvr.bpl [2021-06-07 04:45:52,891 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 04:45:52,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 04:45:52,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 04:45:52,892 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 04:45:52,953 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 04:45:52,983 INFO L255 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-07 04:45:53,025 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 04:45:53,025 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 04:45:53,025 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 04:45:53,025 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 04:45:53,025 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 04:45:53,025 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 04:45:53,025 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 04:45:53,025 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 04:45:53,056 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:53,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:53,062 INFO L82 PathProgramCache]: Analyzing trace with hash 135052863, now seen corresponding path program 1 times [2021-06-07 04:45:53,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:53,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111246035] [2021-06-07 04:45:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 04:45:53,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:53,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111246035] [2021-06-07 04:45:53,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111246035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:45:53,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:45:53,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-07 04:45:53,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029369438] [2021-06-07 04:45:53,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-07 04:45:53,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:53,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-07 04:45:53,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-07 04:45:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:53,245 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:53,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-06-07 04:45:53,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:53,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:53,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 04:45:53,314 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:53,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1963648535, now seen corresponding path program 1 times [2021-06-07 04:45:53,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:53,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147545773] [2021-06-07 04:45:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:53,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:53,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147545773] [2021-06-07 04:45:53,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147545773] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:53,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501238951] [2021-06-07 04:45:53,394 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 [2021-06-07 04:45:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:53,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-07 04:45:53,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:45:53,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:53,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501238951] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:53,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:45:53,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-07 04:45:53,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061302632] [2021-06-07 04:45:53,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-07 04:45:53,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:53,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-07 04:45:53,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-07 04:45:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:53,595 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:53,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-06-07 04:45:53,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:53,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:53,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:45:53,914 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:53,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1454866425, now seen corresponding path program 2 times [2021-06-07 04:45:53,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:53,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028944521] [2021-06-07 04:45:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:54,482 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2021-06-07 04:45:54,618 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2021-06-07 04:45:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:54,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:54,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028944521] [2021-06-07 04:45:54,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028944521] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:54,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588738035] [2021-06-07 04:45:54,759 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 [2021-06-07 04:45:54,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 04:45:54,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:45:54,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-07 04:45:54,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:45:55,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,220 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-06-07 04:45:55,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 57 [2021-06-07 04:45:55,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,246 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-06-07 04:45:55,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 43 [2021-06-07 04:45:55,250 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,271 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-06-07 04:45:55,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 46 [2021-06-07 04:45:55,277 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,295 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 54 [2021-06-07 04:45:55,296 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,315 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-06-07 04:45:55,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 65 [2021-06-07 04:45:55,319 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,338 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-06-07 04:45:55,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 53 [2021-06-07 04:45:55,343 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,362 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-06-07 04:45:55,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 50 [2021-06-07 04:45:55,365 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,378 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 51 [2021-06-07 04:45:55,380 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,393 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 39 [2021-06-07 04:45:55,400 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,416 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 47 [2021-06-07 04:45:55,417 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,429 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 51 [2021-06-07 04:45:55,430 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,445 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 55 [2021-06-07 04:45:55,446 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,458 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 47 [2021-06-07 04:45:55,460 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,475 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-07 04:45:55,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 55 [2021-06-07 04:45:55,477 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:45:55,494 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-06-07 04:45:55,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 65 [2021-06-07 04:45:55,497 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,504 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-06-07 04:45:55,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 54 [2021-06-07 04:45:55,505 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-07 04:45:55,618 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-06-07 04:45:55,619 INFO L628 ElimStorePlain]: treesize reduction 123, result has 39.4 percent of original size [2021-06-07 04:45:55,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-07 04:45:55,621 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1445, output treesize:80 [2021-06-07 04:45:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:55,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588738035] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:55,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:45:55,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-07 04:45:55,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433230533] [2021-06-07 04:45:55,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-07 04:45:55,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:55,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-07 04:45:55,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-06-07 04:45:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:55,777 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:55,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 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) [2021-06-07 04:45:55,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:55,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:55,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:56,246 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-06-07 04:45:56,385 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-06-07 04:45:56,525 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2021-06-07 04:45:56,655 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-07 04:45:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:57,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:45:57,065 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:57,065 INFO L82 PathProgramCache]: Analyzing trace with hash -2141530459, now seen corresponding path program 3 times [2021-06-07 04:45:57,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:57,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651931188] [2021-06-07 04:45:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:57,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:57,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651931188] [2021-06-07 04:45:57,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651931188] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:57,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647720701] [2021-06-07 04:45:57,122 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 [2021-06-07 04:45:57,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-07 04:45:57,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:45:57,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 04:45:57,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:45:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:57,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647720701] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:57,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:45:57,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-06-07 04:45:57,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594863342] [2021-06-07 04:45:57,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-07 04:45:57,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-07 04:45:57,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-06-07 04:45:57,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:57,302 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:57,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 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) [2021-06-07 04:45:57,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:57,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:57,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:57,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 04:45:57,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:45:57,917 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:57,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:57,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1763076543, now seen corresponding path program 4 times [2021-06-07 04:45:57,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:57,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944970341] [2021-06-07 04:45:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 04:45:57,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:57,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944970341] [2021-06-07 04:45:57,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944970341] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:57,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645512859] [2021-06-07 04:45:57,985 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 [2021-06-07 04:45:58,017 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 04:45:58,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:45:58,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-07 04:45:58,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:45:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 04:45:58,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645512859] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:58,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:45:58,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-07 04:45:58,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222051783] [2021-06-07 04:45:58,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-07 04:45:58,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:58,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-07 04:45:58,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-06-07 04:45:58,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:58,169 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:58,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 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) [2021-06-07 04:45:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 04:45:58,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 04:45:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:45:58,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-07 04:45:58,605 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:58,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:58,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1917894051, now seen corresponding path program 5 times [2021-06-07 04:45:58,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:58,605 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875281362] [2021-06-07 04:45:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:45:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:58,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:45:58,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875281362] [2021-06-07 04:45:58,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875281362] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:58,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136182096] [2021-06-07 04:45:58,697 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 [2021-06-07 04:45:58,729 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-07 04:45:58,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:45:58,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-07 04:45:58,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:45:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:45:58,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136182096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:45:58,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:45:58,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-06-07 04:45:58,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80294875] [2021-06-07 04:45:58,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-07 04:45:58,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:45:58,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-07 04:45:58,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-06-07 04:45:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:58,895 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:45:58,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 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) [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:45:58,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:45:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-07 04:45:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-07 04:45:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 04:45:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 04:45:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:45:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-07 04:45:59,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:45:59,241 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:45:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:45:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -277582981, now seen corresponding path program 6 times [2021-06-07 04:45:59,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:45:59,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324438926] [2021-06-07 04:45:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:45:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:46:00,659 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 133 [2021-06-07 04:46:00,846 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 52 [2021-06-07 04:46:01,276 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 204 [2021-06-07 04:46:01,844 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 83 [2021-06-07 04:46:02,387 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 261 [2021-06-07 04:46:02,949 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 101 [2021-06-07 04:46:03,496 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 265 [2021-06-07 04:46:04,052 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 105 [2021-06-07 04:46:04,898 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 323 [2021-06-07 04:46:05,976 WARN L205 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 153 [2021-06-07 04:46:06,259 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 229 [2021-06-07 04:46:06,944 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 103 [2021-06-07 04:46:07,107 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 177 [2021-06-07 04:46:07,505 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2021-06-07 04:46:07,613 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-06-07 04:46:07,838 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 57 [2021-06-07 04:46:08,086 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2021-06-07 04:46:08,319 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 37 [2021-06-07 04:46:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:46:08,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:46:08,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324438926] [2021-06-07 04:46:08,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324438926] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:46:08,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460448757] [2021-06-07 04:46:08,438 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 [2021-06-07 04:46:08,517 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-07 04:46:08,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:46:08,518 WARN L261 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-07 04:46:08,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:46:10,545 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 130 [2021-06-07 04:46:12,767 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 373 [2021-06-07 04:46:14,479 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 376 [2021-06-07 04:46:16,335 WARN L205 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2021-06-07 04:46:17,798 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 379 [2021-06-07 04:46:19,601 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 382 [2021-06-07 04:46:23,370 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 417 Received shutdown request... [2021-06-07 05:00:40,661 WARN L222 SmtUtils]: Removed 4 from assertion stack [2021-06-07 05:00:40,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-07 05:00:40,862 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-07 05:00:40,867 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 05:00:40,867 WARN L196 ceAbstractionStarter]: Timeout [2021-06-07 05:00:40,868 INFO L202 PluginConnector]: Adding new model mts.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 05:00:40 BasicIcfg [2021-06-07 05:00:40,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 05:00:40,868 INFO L168 Benchmark]: Toolchain (without parser) took 888288.90 ms. Allocated memory was 388.0 MB in the beginning and 1.1 GB in the end (delta: 677.4 MB). Free memory was 367.2 MB in the beginning and 652.7 MB in the end (delta: -285.4 MB). Peak memory consumption was 643.9 MB. Max. memory is 16.0 GB. [2021-06-07 05:00:40,868 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 388.0 MB. Free memory is still 368.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 05:00:40,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.14 ms. Allocated memory is still 388.0 MB. Free memory was 367.2 MB in the beginning and 365.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 05:00:40,868 INFO L168 Benchmark]: Boogie Preprocessor took 21.46 ms. Allocated memory is still 388.0 MB. Free memory was 365.7 MB in the beginning and 364.7 MB in the end (delta: 977.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 05:00:40,868 INFO L168 Benchmark]: RCFGBuilder took 260.08 ms. Allocated memory is still 388.0 MB. Free memory was 364.6 MB in the beginning and 350.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-07 05:00:40,868 INFO L168 Benchmark]: TraceAbstraction took 887984.23 ms. Allocated memory was 388.0 MB in the beginning and 1.1 GB in the end (delta: 677.4 MB). Free memory was 350.5 MB in the beginning and 652.7 MB in the end (delta: -302.1 MB). Peak memory consumption was 629.2 MB. Max. memory is 16.0 GB. [2021-06-07 05:00:40,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 388.0 MB. Free memory is still 368.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.14 ms. Allocated memory is still 388.0 MB. Free memory was 367.2 MB in the beginning and 365.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.46 ms. Allocated memory is still 388.0 MB. Free memory was 365.7 MB in the beginning and 364.7 MB in the end (delta: 977.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 260.08 ms. Allocated memory is still 388.0 MB. Free memory was 364.6 MB in the beginning and 350.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 887984.23 ms. Allocated memory was 388.0 MB in the beginning and 1.1 GB in the end (delta: 677.4 MB). Free memory was 350.5 MB in the beginning and 652.7 MB in the end (delta: -302.1 MB). Peak memory consumption was 629.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1566, positive: 1337, positive conditional: 1337, positive unconditional: 0, negative: 229, negative conditional: 229, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1337, positive: 1337, positive conditional: 1337, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1337, positive: 1337, positive conditional: 0, positive unconditional: 1337, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 71, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 71, positive: 71, positive conditional: 0, positive unconditional: 71, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1337, positive: 1266, positive conditional: 0, positive unconditional: 1266, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 71, unknown conditional: 0, unknown unconditional: 71] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 229 - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 39 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1812 for 845868ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 887868.4ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.1ms, PartialOrderReductionTime: 2015.2ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.6ms SsaConstructionTime, 175.4ms SatisfiabilityAnalysisTime, 2704.6ms InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 305 ConstructedInterpolants, 0 QuantifiedInterpolants, 3682 SizeOfPredicates, 19 NumberOfNonLiveVariables, 409 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 36/143 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown