/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-proofs/counter-add-2-context-alt-yQo.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 22:44:11,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 22:44:11,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 22:44:11,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 22:44:11,134 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 22:44:11,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 22:44:11,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 22:44:11,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 22:44:11,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 22:44:11,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 22:44:11,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 22:44:11,173 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 22:44:11,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 22:44:11,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 22:44:11,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 22:44:11,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 22:44:11,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 22:44:11,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 22:44:11,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 22:44:11,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 22:44:11,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 22:44:11,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 22:44:11,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 22:44:11,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 22:44:11,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 22:44:11,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 22:44:11,177 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 22:44:11,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 22:44:11,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 22:44:11,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 22:44:11,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 22:44:11,537 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 22:44:11,538 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 22:44:11,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-2-context-alt-yQo.wvr.bpl [2021-02-19 22:44:11,539 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-2-context-alt-yQo.wvr.bpl' [2021-02-19 22:44:11,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 22:44:11,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 22:44:11,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 22:44:11,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 22:44:11,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 22:44:11,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 22:44:11,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 22:44:11,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 22:44:11,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 22:44:11,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/1) ... [2021-02-19 22:44:11,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 22:44:11,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 22:44:11,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 22:44:11,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 22:44:11,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (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 22:44:11,695 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 22:44:11,695 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 22:44:11,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 22:44:11,696 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 22:44:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 22:44:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 22:44:11,696 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 22:44:11,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 22:44:11,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 22:44:11,697 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 22:44:11,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 22:44:11,915 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 22:44:11,921 INFO L202 PluginConnector]: Adding new model counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:44:11 BoogieIcfgContainer [2021-02-19 22:44:11,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 22:44:11,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 22:44:11,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 22:44:11,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 22:44:11,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:44:11" (1/2) ... [2021-02-19 22:44:11,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffef098 and model type counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:44:11, skipping insertion in model container [2021-02-19 22:44:11,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:44:11" (2/2) ... [2021-02-19 22:44:11,929 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-2-context-alt-yQo.wvr.bpl [2021-02-19 22:44:11,939 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 22:44:11,939 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 22:44:11,944 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 22:44:11,944 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 22:44:12,008 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 22:44:12,036 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 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 22:44:12,131 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 22:44:12,132 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 22:44:12,132 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 22:44:12,132 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 22:44:12,132 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 22:44:12,132 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 22:44:12,132 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 22:44:12,132 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 22:44:12,254 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:12,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:12,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1355572749, now seen corresponding path program 1 times [2021-02-19 22:44:12,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:12,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94545043] [2021-02-19 22:44:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:12,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94545043] [2021-02-19 22:44:12,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630152020] [2021-02-19 22:44:12,703 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 22:44:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:12,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2021-02-19 22:44:12,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:13,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:13,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-02-19 22:44:13,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165017997] [2021-02-19 22:44:13,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-19 22:44:13,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:13,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-19 22:44:13,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-02-19 22:44:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:13,089 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:13,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 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 22:44:13,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:13,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-02-19 22:44:13,458 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash -159526841, now seen corresponding path program 2 times [2021-02-19 22:44:13,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:13,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662979846] [2021-02-19 22:44:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:13,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662979846] [2021-02-19 22:44:13,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108971461] [2021-02-19 22:44:13,722 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) [2021-02-19 22:44:13,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:44:13,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:44:13,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 28 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:13,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:14,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:14,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 22:44:14,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679522701] [2021-02-19 22:44:14,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 22:44:14,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:14,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 22:44:14,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2021-02-19 22:44:14,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:14,254 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:14,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 24 states have internal predecessors, (48), 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 22:44:14,254 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:14,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:14,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:14,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:14,890 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:14,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:14,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1467933503, now seen corresponding path program 3 times [2021-02-19 22:44:14,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:14,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587239303] [2021-02-19 22:44:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:15,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587239303] [2021-02-19 22:44:15,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558884065] [2021-02-19 22:44:15,242 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) [2021-02-19 22:44:15,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-02-19 22:44:15,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:15,281 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjunts are in the unsatisfiable core [2021-02-19 22:44:15,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:15,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:15,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-02-19 22:44:15,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140169312] [2021-02-19 22:44:15,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-19 22:44:15,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:15,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-19 22:44:15,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2021-02-19 22:44:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:15,810 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:15,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.935483870967742) internal successors, (60), 30 states have internal predecessors, (60), 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 22:44:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:16,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:17,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:17,114 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:17,115 INFO L82 PathProgramCache]: Analyzing trace with hash -37464857, now seen corresponding path program 4 times [2021-02-19 22:44:17,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:17,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052726804] [2021-02-19 22:44:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:18,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052726804] [2021-02-19 22:44:18,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023247830] [2021-02-19 22:44:18,007 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 22:44:18,043 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:44:18,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:44:18,046 WARN L261 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 93 conjunts are in the unsatisfiable core [2021-02-19 22:44:18,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:19,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:19,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 29] total 51 [2021-02-19 22:44:19,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846328479] [2021-02-19 22:44:19,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-02-19 22:44:19,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:19,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-02-19 22:44:19,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2439, Unknown=0, NotChecked=0, Total=2652 [2021-02-19 22:44:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:19,411 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:19,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.1346153846153846) internal successors, (111), 51 states have internal predecessors, (111), 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 22:44:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:19,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:21,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:21,528 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:21,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:21,528 INFO L82 PathProgramCache]: Analyzing trace with hash -84745319, now seen corresponding path program 5 times [2021-02-19 22:44:21,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:21,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665517434] [2021-02-19 22:44:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 169 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:22,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665517434] [2021-02-19 22:44:22,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186002640] [2021-02-19 22:44:22,304 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 22:44:22,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-02-19 22:44:22,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:44:22,407 WARN L261 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 121 conjunts are in the unsatisfiable core [2021-02-19 22:44:22,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:24,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:24,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36] total 67 [2021-02-19 22:44:24,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026135601] [2021-02-19 22:44:24,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2021-02-19 22:44:24,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:24,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-02-19 22:44:24,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=570, Invalid=3986, Unknown=0, NotChecked=0, Total=4556 [2021-02-19 22:44:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:24,126 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:24,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 68 states, 68 states have (on average 2.0588235294117645) internal successors, (140), 67 states have internal predecessors, (140), 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 22:44:24,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:24,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:24,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:24,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:24,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:44:27,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:27,497 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:27,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1843655335, now seen corresponding path program 6 times [2021-02-19 22:44:27,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:27,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198275122] [2021-02-19 22:44:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 0 proven. 1405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:29,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198275122] [2021-02-19 22:44:29,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979808616] [2021-02-19 22:44:29,572 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 22:44:29,710 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2021-02-19 22:44:29,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:44:29,716 WARN L261 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 221 conjunts are in the unsatisfiable core [2021-02-19 22:44:29,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 0 proven. 1405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:34,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:34,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 61] total 107 [2021-02-19 22:44:34,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085197000] [2021-02-19 22:44:34,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-02-19 22:44:34,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-02-19 22:44:34,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=733, Invalid=10823, Unknown=0, NotChecked=0, Total=11556 [2021-02-19 22:44:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:34,009 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:34,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 2.212962962962963) internal successors, (239), 107 states have internal predecessors, (239), 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 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:44:34,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:36,162 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 108 [2021-02-19 22:44:36,431 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-02-19 22:44:36,718 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 22:44:36,948 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2021-02-19 22:44:37,176 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2021-02-19 22:44:37,428 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2021-02-19 22:44:37,658 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 22:44:37,883 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 22:44:38,127 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 22:44:38,320 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 22:44:38,585 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 22:44:38,809 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 22:44:39,031 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 22:44:39,270 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 22:44:39,461 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 22:44:39,618 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 22:44:39,839 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 22:44:40,013 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 22:44:40,358 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 22:44:40,535 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 22:44:40,876 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 22:44:41,325 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-19 22:44:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:42,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:44:42,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:44:43,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:43,158 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:44:43,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:44:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1006417591, now seen corresponding path program 7 times [2021-02-19 22:44:43,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:44:43,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342967399] [2021-02-19 22:44:43,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:44:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2440 backedges. 841 proven. 1599 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:45,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342967399] [2021-02-19 22:44:45,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628555735] [2021-02-19 22:44:45,652 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:44:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:44:45,720 WARN L261 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 281 conjunts are in the unsatisfiable core [2021-02-19 22:44:45,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:44:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2440 backedges. 0 proven. 2440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:44:51,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:44:51,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 76] total 139 [2021-02-19 22:44:51,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752774818] [2021-02-19 22:44:51,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 140 states [2021-02-19 22:44:51,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:44:51,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2021-02-19 22:44:51,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2350, Invalid=17110, Unknown=0, NotChecked=0, Total=19460 [2021-02-19 22:44:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:51,951 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:44:51,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 140 states, 140 states have (on average 2.142857142857143) internal successors, (300), 139 states have internal predecessors, (300), 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 22:44:51,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:44:51,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:44:51,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:44:51,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:44:51,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:44:51,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:44:51,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:44:55,565 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 107 [2021-02-19 22:44:55,967 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 22:44:56,366 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 22:44:56,688 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 22:44:56,998 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 22:44:57,284 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 22:44:57,621 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 22:45:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:45:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:45:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:45:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:45:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:45:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:45:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:45:04,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-02-19 22:45:04,731 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:45:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:45:04,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1399664167, now seen corresponding path program 8 times [2021-02-19 22:45:04,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:45:04,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032242174] [2021-02-19 22:45:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:45:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:45:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 0 proven. 6845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:45:12,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032242174] [2021-02-19 22:45:12,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956000933] [2021-02-19 22:45:12,728 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:45:12,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:45:12,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:45:12,862 WARN L261 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 477 conjunts are in the unsatisfiable core [2021-02-19 22:45:12,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:45:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6845 backedges. 0 proven. 6845 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:45:34,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:45:34,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 125] total 219 [2021-02-19 22:45:34,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364634361] [2021-02-19 22:45:34,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 220 states [2021-02-19 22:45:34,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:45:34,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2021-02-19 22:45:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2733, Invalid=45447, Unknown=0, NotChecked=0, Total=48180 [2021-02-19 22:45:34,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:45:34,374 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:45:34,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 220 states, 220 states have (on average 2.25) internal successors, (495), 219 states have internal predecessors, (495), 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 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:45:34,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:45:43,615 WARN L202 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 220 [2021-02-19 22:45:44,785 WARN L202 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 218 [2021-02-19 22:45:45,978 WARN L202 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 223 [2021-02-19 22:45:46,963 WARN L202 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 215 [2021-02-19 22:45:47,974 WARN L202 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 213 [2021-02-19 22:45:49,027 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 218 [2021-02-19 22:45:49,966 WARN L202 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 209 [2021-02-19 22:45:50,927 WARN L202 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 207 [2021-02-19 22:45:51,938 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 212 [2021-02-19 22:45:52,864 WARN L202 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 202 [2021-02-19 22:45:53,804 WARN L202 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 200 [2021-02-19 22:45:54,788 WARN L202 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 205 [2021-02-19 22:45:55,680 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 195 [2021-02-19 22:45:56,605 WARN L202 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 193 [2021-02-19 22:45:57,556 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 198 [2021-02-19 22:45:58,435 WARN L202 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 188 [2021-02-19 22:45:59,311 WARN L202 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 186 [2021-02-19 22:46:00,237 WARN L202 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 191 [2021-02-19 22:46:01,098 WARN L202 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 181 [2021-02-19 22:46:01,976 WARN L202 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 179 [2021-02-19 22:46:02,899 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 184 [2021-02-19 22:46:03,738 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 174 [2021-02-19 22:46:04,602 WARN L202 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 172 [2021-02-19 22:46:05,502 WARN L202 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 177 [2021-02-19 22:46:06,323 WARN L202 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 167 [2021-02-19 22:46:07,130 WARN L202 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 165 [2021-02-19 22:46:07,906 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 170 [2021-02-19 22:46:08,641 WARN L202 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 160 [2021-02-19 22:46:09,428 WARN L202 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2021-02-19 22:46:10,168 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 163 [2021-02-19 22:46:10,880 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 153 [2021-02-19 22:46:11,660 WARN L202 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 151 [2021-02-19 22:46:12,411 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 156 [2021-02-19 22:46:13,115 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 146 [2021-02-19 22:46:13,805 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 144 [2021-02-19 22:46:14,536 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 149 [2021-02-19 22:46:15,241 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 139 [2021-02-19 22:46:15,885 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 137 [2021-02-19 22:46:16,653 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 142 [2021-02-19 22:46:17,316 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2021-02-19 22:46:17,951 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 130 [2021-02-19 22:46:18,666 WARN L202 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2021-02-19 22:46:19,264 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-02-19 22:46:19,899 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 123 [2021-02-19 22:46:20,616 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128 [2021-02-19 22:46:21,187 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2021-02-19 22:46:21,816 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2021-02-19 22:46:22,484 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 121 [2021-02-19 22:46:23,038 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2021-02-19 22:46:23,664 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 109 [2021-02-19 22:46:24,309 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2021-02-19 22:46:24,856 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2021-02-19 22:46:25,460 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2021-02-19 22:46:26,038 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2021-02-19 22:46:26,570 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 97 [2021-02-19 22:46:27,136 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-02-19 22:46:27,692 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2021-02-19 22:46:28,196 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2021-02-19 22:46:28,742 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2021-02-19 22:46:29,267 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-02-19 22:46:29,744 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2021-02-19 22:46:30,264 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-02-19 22:46:30,791 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-02-19 22:46:31,246 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2021-02-19 22:46:31,744 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 22:46:32,235 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 22:46:32,637 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-02-19 22:46:33,104 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-02-19 22:46:33,585 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-02-19 22:46:33,949 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-02-19 22:46:34,376 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-02-19 22:46:34,833 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-02-19 22:46:35,193 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-02-19 22:46:35,584 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-19 22:46:36,003 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-02-19 22:46:36,359 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-02-19 22:46:36,748 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-02-19 22:46:37,150 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-02-19 22:46:37,474 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-02-19 22:46:37,852 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2021-02-19 22:46:38,185 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-02-19 22:46:38,871 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-02-19 22:46:39,187 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-02-19 22:46:39,755 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:46:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:46:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:46:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:46:40,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:46:40,854 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:46:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:46:40,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1183353687, now seen corresponding path program 9 times [2021-02-19 22:46:40,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:46:40,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139026733] [2021-02-19 22:46:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:46:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:46:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11464 backedges. 3721 proven. 7743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:46:57,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139026733] [2021-02-19 22:46:57,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368620099] [2021-02-19 22:46:57,736 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:46:58,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 91 check-sat command(s) [2021-02-19 22:46:58,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:46:58,574 WARN L261 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 601 conjunts are in the unsatisfiable core [2021-02-19 22:46:58,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:48:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11464 backedges. 0 proven. 11464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:48:05,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:48:05,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 156] total 283 [2021-02-19 22:48:05,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475517593] [2021-02-19 22:48:05,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 284 states [2021-02-19 22:48:05,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:48:05,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 284 interpolants. [2021-02-19 22:48:05,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9558, Invalid=70814, Unknown=0, NotChecked=0, Total=80372 [2021-02-19 22:48:05,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:48:05,986 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:48:05,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 284 states, 284 states have (on average 2.183098591549296) internal successors, (620), 283 states have internal predecessors, (620), 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 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:48:05,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:48:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:48:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:48:05,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:48:52,249 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2021-02-19 22:48:54,670 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2021-02-19 22:48:57,341 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 284 DAG size of output: 219 [2021-02-19 22:49:00,484 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 268 DAG size of output: 210 [2021-02-19 22:49:03,292 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 259 DAG size of output: 203 [2021-02-19 22:49:05,962 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 250 DAG size of output: 196 [2021-02-19 22:49:08,506 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 241 DAG size of output: 189 [2021-02-19 22:49:11,061 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 232 DAG size of output: 182 [2021-02-19 22:49:13,573 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 223 DAG size of output: 175 [2021-02-19 22:49:15,964 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 214 DAG size of output: 168 [2021-02-19 22:49:18,424 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 205 DAG size of output: 161 [2021-02-19 22:49:20,864 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 196 DAG size of output: 154 [2021-02-19 22:49:23,207 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2021-02-19 22:49:25,575 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 178 DAG size of output: 140 [2021-02-19 22:49:27,795 WARN L202 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 133 [2021-02-19 22:49:29,968 WARN L202 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 126 [2021-02-19 22:49:32,109 WARN L202 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 119 [2021-02-19 22:49:34,170 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 112 [2021-02-19 22:49:36,126 WARN L202 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 105 [2021-02-19 22:49:38,009 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2021-02-19 22:49:39,810 WARN L202 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2021-02-19 22:49:41,591 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2021-02-19 22:49:43,315 WARN L202 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 77 [2021-02-19 22:49:44,980 WARN L202 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-02-19 22:49:46,520 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-02-19 22:49:47,985 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2021-02-19 22:49:49,343 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2021-02-19 22:49:50,697 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-02-19 22:49:51,952 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2021-02-19 22:49:53,103 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-02-19 22:49:54,139 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:49:55,208 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:49:56,281 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:49:57,402 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:49:58,472 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:49:59,502 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:00,573 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:01,684 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:02,840 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:04,005 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:05,166 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:06,279 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:07,374 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:08,450 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:09,524 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:10,622 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:11,746 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:12,852 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:13,953 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:15,004 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:16,078 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:17,138 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:18,197 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:19,253 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:20,318 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:22,155 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:23,206 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:24,209 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:25,248 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2021-02-19 22:50:26,207 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2021-02-19 22:50:27,153 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-02-19 22:51:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-02-19 22:51:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2021-02-19 22:51:37,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:51:37,496 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:51:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:51:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash 329753895, now seen corresponding path program 10 times [2021-02-19 22:51:37,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:51:37,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655769659] [2021-02-19 22:51:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:51:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:51:49,081 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2021-02-19 22:52:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 30013 backedges. 0 proven. 30013 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:52:58,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655769659] [2021-02-19 22:52:58,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735320748] [2021-02-19 22:52:58,299 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:52:58,576 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:52:58,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:52:58,591 WARN L261 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 989 conjunts are in the unsatisfiable core [2021-02-19 22:52:58,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-02-19 22:53:03,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-02-19 22:53:03,012 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 22:53:03,016 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 22:53:03,016 INFO L202 PluginConnector]: Adding new model counter-add-2-context-alt-yQo.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:53:03 BasicIcfg [2021-02-19 22:53:03,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 22:53:03,017 INFO L168 Benchmark]: Toolchain (without parser) took 531443.42 ms. Allocated memory was 379.6 MB in the beginning and 952.1 MB in the end (delta: 572.5 MB). Free memory was 360.2 MB in the beginning and 270.1 MB in the end (delta: 90.1 MB). Peak memory consumption was 665.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:53:03,017 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 379.6 MB. Free memory was 361.3 MB in the beginning and 361.2 MB in the end (delta: 83.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:53:03,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 379.6 MB. Free memory was 359.7 MB in the beginning and 358.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:53:03,017 INFO L168 Benchmark]: Boogie Preprocessor took 13.37 ms. Allocated memory is still 379.6 MB. Free memory was 358.3 MB in the beginning and 357.3 MB in the end (delta: 970.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 22:53:03,017 INFO L168 Benchmark]: RCFGBuilder took 304.00 ms. Allocated memory is still 379.6 MB. Free memory was 357.3 MB in the beginning and 346.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-02-19 22:53:03,017 INFO L168 Benchmark]: TraceAbstraction took 531093.43 ms. Allocated memory was 379.6 MB in the beginning and 952.1 MB in the end (delta: 572.5 MB). Free memory was 345.6 MB in the beginning and 270.1 MB in the end (delta: 75.5 MB). Peak memory consumption was 650.4 MB. Max. memory is 16.0 GB. [2021-02-19 22:53:03,018 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 0.17 ms. Allocated memory is still 379.6 MB. Free memory was 361.3 MB in the beginning and 361.2 MB in the end (delta: 83.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 379.6 MB. Free memory was 359.7 MB in the beginning and 358.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.37 ms. Allocated memory is still 379.6 MB. Free memory was 358.3 MB in the beginning and 357.3 MB in the end (delta: 970.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 304.00 ms. Allocated memory is still 379.6 MB. Free memory was 357.3 MB in the beginning and 346.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 531093.43 ms. Allocated memory was 379.6 MB in the beginning and 952.1 MB in the end (delta: 572.5 MB). Free memory was 345.6 MB in the beginning and 270.1 MB in the end (delta: 75.5 MB). Peak memory consumption was 650.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 49). Cancelled while PartialOrderCegarLoop was analyzing trace of length 506 with TraceHistMax 123,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 199 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 530.9s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 134.3s InterpolantComputationTime, 2070 NumberOfCodeBlocks, 2070 NumberOfCodeBlocksAsserted, 173 NumberOfCheckSat, 2052 ConstructedInterpolants, 0 QuantifiedInterpolants, 7807148 SizeOfPredicates, 45 NumberOfNonLiveVariables, 2502 ConjunctsInSsa, 1878 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 4760/45716 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