/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 02:38:08,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 02:38:08,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 02:38:08,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 02:38:08,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-10 02:38:08,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 02:38:08,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 02:38:08,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 02:38:08,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 02:38:08,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 02:38:08,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 02:38:08,696 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 02:38:08,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 02:38:08,696 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 02:38:08,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 02:38:08,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 02:38:08,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 02:38:08,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 02:38:08,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 02:38:08,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 02:38:08,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 02:38:08,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 02:38:08,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:38:08,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 02:38:08,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 02:38:08,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 02:38:08,701 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 02:38:08,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 02:38:08,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 02:38:09,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 02:38:09,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 02:38:09,016 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 02:38:09,017 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 02:38:09,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl [2021-07-10 02:38:09,018 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl' [2021-07-10 02:38:09,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 02:38:09,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 02:38:09,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 02:38:09,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 02:38:09,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 02:38:09,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 02:38:09,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 02:38:09,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 02:38:09,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 02:38:09,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/1) ... [2021-07-10 02:38:09,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 02:38:09,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 02:38:09,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 02:38:09,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 02:38:09,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (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 [2021-07-10 02:38:09,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 02:38:09,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 02:38:09,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 02:38:09,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 02:38:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 02:38:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 02:38:09,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 02:38:09,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 02:38:09,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 02:38:09,173 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 02:38:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 02:38:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 02:38:09,175 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 02:38:09,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 02:38:09,376 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 02:38:09,377 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:38:09 BoogieIcfgContainer [2021-07-10 02:38:09,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 02:38:09,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 02:38:09,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 02:38:09,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 02:38:09,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:38:09" (1/2) ... [2021-07-10 02:38:09,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b9ea82 and model type sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:38:09, skipping insertion in model container [2021-07-10 02:38:09,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:38:09" (2/2) ... [2021-07-10 02:38:09,383 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array.wvr.bpl [2021-07-10 02:38:09,387 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 02:38:09,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 02:38:09,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 02:38:09,388 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 02:38:09,452 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 02:38:09,470 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 02:38:09,520 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 02:38:09,521 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 02:38:09,521 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 02:38:09,521 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 02:38:09,521 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 02:38:09,521 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 02:38:09,521 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 02:38:09,522 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 02:38:09,626 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:09,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash -2048413527, now seen corresponding path program 1 times [2021-07-10 02:38:09,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:09,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520082677] [2021-07-10 02:38:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:09,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:09,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520082677] [2021-07-10 02:38:09,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520082677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:38:09,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:38:09,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 02:38:09,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272673116] [2021-07-10 02:38:09,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 02:38:09,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:09,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 02:38:09,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 02:38:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:09,875 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:09,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-07-10 02:38:09,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:09,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 02:38:09,920 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1251079929, now seen corresponding path program 1 times [2021-07-10 02:38:09,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:09,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743368610] [2021-07-10 02:38:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:38:09,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:09,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743368610] [2021-07-10 02:38:09,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743368610] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:38:09,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:38:09,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-10 02:38:09,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139079580] [2021-07-10 02:38:10,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 02:38:10,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:10,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 02:38:10,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 02:38:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:10,006 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:10,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:38:10,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:10,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:10,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:10,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:10,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 02:38:10,069 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:10,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:10,069 INFO L82 PathProgramCache]: Analyzing trace with hash 740151525, now seen corresponding path program 1 times [2021-07-10 02:38:10,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:10,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836580006] [2021-07-10 02:38:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:10,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:10,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836580006] [2021-07-10 02:38:10,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836580006] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:10,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623678991] [2021-07-10 02:38:10,386 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 [2021-07-10 02:38:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:10,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 02:38:10,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:10,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:38:10,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 02:38:10,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:38:10,706 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:38:10,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:38:10,710 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2021-07-10 02:38:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:10,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623678991] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:10,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:10,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:38:10,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612041580] [2021-07-10 02:38:10,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:38:10,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:10,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:38:10,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:38:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:10,749 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:10,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-07-10 02:38:10,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:10,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:10,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:11,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:11,145 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:11,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:11,145 INFO L82 PathProgramCache]: Analyzing trace with hash 98880067, now seen corresponding path program 2 times [2021-07-10 02:38:11,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:11,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854848890] [2021-07-10 02:38:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:11,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:11,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:11,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854848890] [2021-07-10 02:38:11,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854848890] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:11,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640940526] [2021-07-10 02:38:11,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:11,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:38:11,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:11,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:38:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:11,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640940526] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:11,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:11,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-10 02:38:11,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154606702] [2021-07-10 02:38:11,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:38:11,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:11,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:38:11,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:38:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:11,389 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:11,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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) [2021-07-10 02:38:11,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:11,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:11,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:11,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:11,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:11,789 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:11,790 INFO L82 PathProgramCache]: Analyzing trace with hash -832533121, now seen corresponding path program 1 times [2021-07-10 02:38:11,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:11,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553353316] [2021-07-10 02:38:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:38:11,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:11,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553353316] [2021-07-10 02:38:11,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553353316] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:11,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659740269] [2021-07-10 02:38:11,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:11,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 02:38:11,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:38:11,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659740269] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:11,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:11,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-10 02:38:11,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655474952] [2021-07-10 02:38:11,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-10 02:38:11,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:11,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-10 02:38:11,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-10 02:38:11,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:11,979 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:11,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2021-07-10 02:38:11,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:11,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:11,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:12,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:12,317 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:12,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:12,317 INFO L82 PathProgramCache]: Analyzing trace with hash 399673437, now seen corresponding path program 2 times [2021-07-10 02:38:12,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:12,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005759094] [2021-07-10 02:38:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:12,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:12,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005759094] [2021-07-10 02:38:12,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005759094] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:12,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940614569] [2021-07-10 02:38:12,740 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 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 [2021-07-10 02:38:12,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:38:12,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:12,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-10 02:38:12,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:13,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:13,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:13,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:38:13,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-10 02:38:13,106 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:38:13,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:38:13,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:38:13,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:3 [2021-07-10 02:38:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:13,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940614569] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:13,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:13,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-07-10 02:38:13,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096746474] [2021-07-10 02:38:13,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-10 02:38:13,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:13,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-10 02:38:13,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-07-10 02:38:13,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:13,147 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:13,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 22 states have internal predecessors, (52), 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) [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:13,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:13,977 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-07-10 02:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:14,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 02:38:14,321 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash -860798021, now seen corresponding path program 3 times [2021-07-10 02:38:14,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:14,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36136655] [2021-07-10 02:38:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:14,419 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:14,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:14,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36136655] [2021-07-10 02:38:14,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36136655] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:14,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124361651] [2021-07-10 02:38:14,420 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 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 [2021-07-10 02:38:14,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 02:38:14,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:14,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:38:14,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:14,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124361651] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:14,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:14,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-07-10 02:38:14,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752582411] [2021-07-10 02:38:14,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-10 02:38:14,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:14,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-10 02:38:14,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-07-10 02:38:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:14,664 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:14,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 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) [2021-07-10 02:38:14,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:14,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:38:15,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:15,491 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:15,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:15,491 INFO L82 PathProgramCache]: Analyzing trace with hash -18642185, now seen corresponding path program 4 times [2021-07-10 02:38:15,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:15,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998574252] [2021-07-10 02:38:15,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:38:15,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:15,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998574252] [2021-07-10 02:38:15,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998574252] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:15,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533218101] [2021-07-10 02:38:15,584 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 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 [2021-07-10 02:38:15,615 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 02:38:15,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:15,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 02:38:15,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:38:15,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533218101] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:15,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:15,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-07-10 02:38:15,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847997036] [2021-07-10 02:38:15,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 02:38:15,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:15,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 02:38:15,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-07-10 02:38:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:15,759 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:15,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:38:15,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:38:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:38:16,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:38:16,177 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:16,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:16,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1357658155, now seen corresponding path program 5 times [2021-07-10 02:38:16,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:16,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363698123] [2021-07-10 02:38:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:16,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:16,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363698123] [2021-07-10 02:38:16,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363698123] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:16,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607581929] [2021-07-10 02:38:16,692 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 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 [2021-07-10 02:38:16,733 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 02:38:16,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:16,734 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-07-10 02:38:16,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:17,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:38:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:17,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:17,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:17,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 17 [2021-07-10 02:38:17,459 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:38:17,465 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:38:17,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:38:17,468 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:48, output treesize:3 [2021-07-10 02:38:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:17,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607581929] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:17,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:38:17,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-07-10 02:38:17,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378445813] [2021-07-10 02:38:17,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-07-10 02:38:17,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:38:17,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-07-10 02:38:17,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2021-07-10 02:38:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:17,495 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:38:17,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.193548387096774) internal successors, (68), 31 states have internal predecessors, (68), 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) [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:38:17,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 02:38:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 02:38:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 02:38:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 02:38:19,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-10 02:38:19,492 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:38:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:38:19,492 INFO L82 PathProgramCache]: Analyzing trace with hash -986074607, now seen corresponding path program 6 times [2021-07-10 02:38:19,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:38:19,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774244054] [2021-07-10 02:38:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:38:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:38:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:38:20,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:38:20,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774244054] [2021-07-10 02:38:20,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774244054] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:38:20,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350349763] [2021-07-10 02:38:20,219 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 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 [2021-07-10 02:38:20,257 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-10 02:38:20,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:38:20,259 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 58 conjunts are in the unsatisfiable core [2021-07-10 02:38:20,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:38:21,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:38:21,614 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-10 02:38:21,614 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:38:21,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 49 treesize of output 243 [2021-07-10 02:38:22,242 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 807 DAG size of output: 589 [2021-07-10 02:38:22,702 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 819 DAG size of output: 599 [2021-07-10 02:38:23,391 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 553 DAG size of output: 629 [2021-07-10 02:38:23,613 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 547 [2021-07-10 02:38:23,791 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 491 DAG size of output: 491 [2021-07-10 02:38:23,902 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 437 [2021-07-10 02:38:25,487 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 826 DAG size of output: 694 [2021-07-10 02:38:25,738 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1062 DAG size of output: 867 [2021-07-10 02:38:26,441 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1013 [2021-07-10 02:38:27,346 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 1468 DAG size of output: 1162 [2021-07-10 02:38:27,830 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 347 [2021-07-10 02:38:28,569 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 1652 DAG size of output: 1304 [2021-07-10 02:38:29,727 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1921 DAG size of output: 1533 [2021-07-10 02:38:30,784 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1921 DAG size of output: 1533 [2021-07-10 02:38:31,994 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1927 DAG size of output: 1539 [2021-07-10 02:38:34,516 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 1428 DAG size of output: 1780 [2021-07-10 02:38:34,731 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 377 [2021-07-10 02:38:34,920 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 377 [2021-07-10 02:38:35,929 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 858 DAG size of output: 826 [2021-07-10 02:38:36,721 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 1181 DAG size of output: 1131 [2021-07-10 02:38:37,162 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 1336 DAG size of output: 1277 [2021-07-10 02:38:37,832 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 1529 DAG size of output: 1465 [2021-07-10 02:38:38,512 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 580 [2021-07-10 02:38:38,683 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 749 DAG size of output: 709 [2021-07-10 02:38:41,002 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 580 [2021-07-10 02:38:41,182 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 465 DAG size of output: 465 [2021-07-10 02:38:41,519 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 469 [2021-07-10 02:38:42,959 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 1714 DAG size of output: 1500 [2021-07-10 02:38:43,641 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 706 DAG size of output: 683 [2021-07-10 02:38:43,833 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 716 DAG size of output: 693 [2021-07-10 02:38:44,758 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 2114 DAG size of output: 1876 [2021-07-10 02:38:46,088 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 2378 DAG size of output: 2090 [2021-07-10 02:38:51,928 WARN L205 SmtUtils]: Spent 5.83 s on a formula simplification. DAG size of input: 6712 DAG size of output: 6019 [2021-07-10 02:38:57,803 WARN L205 SmtUtils]: Spent 5.84 s on a formula simplification. DAG size of input: 6712 DAG size of output: 6019 [2021-07-10 02:39:04,033 WARN L205 SmtUtils]: Spent 6.18 s on a formula simplification. DAG size of input: 6715 DAG size of output: 6022 [2021-07-10 02:39:16,057 WARN L205 SmtUtils]: Spent 11.98 s on a formula simplification. DAG size of input: 5797 DAG size of output: 7117 [2021-07-10 02:39:17,526 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 761 DAG size of output: 698 [2021-07-10 02:39:17,669 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 290 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown