/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/dec-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 02:19:07,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 02:19:07,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 02:19:07,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 02:19:07,555 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 02:19:07,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 02:19:07,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 02:19:07,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 02:19:07,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 02:19:07,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 02:19:07,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 02:19:07,584 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 02:19:07,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 02:19:07,584 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 02:19:07,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 02:19:07,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 02:19:07,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 02:19:07,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 02:19:07,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 02:19:07,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 02:19:07,587 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-10 02:19:07,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 02:19:07,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 02:19:07,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 02:19:07,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 02:19:07,922 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 02:19:07,938 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 02:19:07,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl [2021-07-10 02:19:07,939 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq-array.wvr.bpl' [2021-07-10 02:19:07,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 02:19:07,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 02:19:07,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 02:19:07,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 02:19:07,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 02:19:07,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:07,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:07,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 02:19:07,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 02:19:07,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 02:19:07,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 02:19:07,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:07,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:07,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:07,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:08,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:08,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:08,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/1) ... [2021-07-10 02:19:08,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 02:19:08,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 02:19:08,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 02:19:08,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 02:19:08,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (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 02:19:08,051 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 02:19:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 02:19:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 02:19:08,052 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 02:19:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 02:19:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 02:19:08,052 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 02:19:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 02:19:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 02:19:08,053 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 02:19:08,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 02:19:08,230 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 02:19:08,231 INFO L202 PluginConnector]: Adding new model dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:19:08 BoogieIcfgContainer [2021-07-10 02:19:08,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 02:19:08,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 02:19:08,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 02:19:08,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 02:19:08,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 02:19:07" (1/2) ... [2021-07-10 02:19:08,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3981e237 and model type dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:19:08, skipping insertion in model container [2021-07-10 02:19:08,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:19:08" (2/2) ... [2021-07-10 02:19:08,237 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq-array.wvr.bpl [2021-07-10 02:19:08,241 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 02:19:08,241 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 02:19:08,241 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 02:19:08,242 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 02:19:08,262 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 02:19:08,278 INFO L255 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 02:19:08,329 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 02:19:08,330 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 02:19:08,330 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 02:19:08,330 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 02:19:08,330 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 02:19:08,330 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 02:19:08,330 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 02:19:08,330 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 02:19:08,462 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:08,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:08,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1909327028, now seen corresponding path program 1 times [2021-07-10 02:19:08,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:08,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31393884] [2021-07-10 02:19:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 02:19:08,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:08,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31393884] [2021-07-10 02:19:08,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31393884] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 02:19:08,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 02:19:08,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 02:19:08,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559441148] [2021-07-10 02:19:08,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 02:19:08,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 02:19:08,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 02:19:08,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:08,721 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:08,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 02:19:08,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:08,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 02:19:08,792 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:08,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1708433124, now seen corresponding path program 2 times [2021-07-10 02:19:08,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:08,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848389722] [2021-07-10 02:19:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:08,894 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 02:19:08,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:08,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848389722] [2021-07-10 02:19:08,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848389722] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:08,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326945670] [2021-07-10 02:19:08,895 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 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 02:19:08,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:19:08,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:19:08,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 02:19:08,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:09,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-10 02:19:09,045 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:19:09,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:09,060 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 02:19:09,060 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-07-10 02:19:09,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 02:19:09,100 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:19:09,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:09,105 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 02:19:09,105 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-07-10 02:19:09,129 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 02:19:09,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326945670] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:09,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:19:09,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-07-10 02:19:09,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658890110] [2021-07-10 02:19:09,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 02:19:09,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:09,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 02:19:09,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-07-10 02:19:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:09,134 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:09,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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 02:19:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:09,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:09,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:09,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:09,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:19:09,489 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:09,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:09,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1305050359, now seen corresponding path program 3 times [2021-07-10 02:19:09,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:09,491 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014029577] [2021-07-10 02:19:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:19:09,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:09,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014029577] [2021-07-10 02:19:09,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014029577] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:09,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647871820] [2021-07-10 02:19:09,752 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 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 02:19:09,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 02:19:09,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:19:09,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-10 02:19:09,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:09,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:09,976 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2021-07-10 02:19:09,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:19:09,988 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:09,988 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 02:19:09,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2021-07-10 02:19:10,167 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:10,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 38 [2021-07-10 02:19:10,223 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 02:19:10,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:10,248 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 02:19:10,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2021-07-10 02:19:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:19:10,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647871820] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:10,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:19:10,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 27 [2021-07-10 02:19:10,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057679708] [2021-07-10 02:19:10,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-10 02:19:10,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:10,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-10 02:19:10,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-07-10 02:19:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:10,337 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:10,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:19:10,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:10,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:10,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:11,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:19:11,444 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:11,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:11,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1376816683, now seen corresponding path program 1 times [2021-07-10 02:19:11,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:11,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191797737] [2021-07-10 02:19:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 25 proven. 26 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 02:19:11,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:11,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191797737] [2021-07-10 02:19:11,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191797737] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:11,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355744109] [2021-07-10 02:19:11,546 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 02:19:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:11,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 02:19:11,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 02:19:11,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355744109] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:11,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:19:11,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-10 02:19:11,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967245727] [2021-07-10 02:19:11,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-10 02:19:11,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:11,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-10 02:19:11,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-10 02:19:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:11,703 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:11,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 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) [2021-07-10 02:19:11,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:11,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:11,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:11,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:11,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:19:11,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:19:11,969 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:11,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:11,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1362501910, now seen corresponding path program 2 times [2021-07-10 02:19:11,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:11,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346673697] [2021-07-10 02:19:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-10 02:19:12,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:12,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346673697] [2021-07-10 02:19:12,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346673697] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:12,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286193951] [2021-07-10 02:19:12,661 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 02:19:12,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 02:19:12,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:19:12,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 72 conjunts are in the unsatisfiable core [2021-07-10 02:19:12,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:14,994 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:14,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 178 [2021-07-10 02:19:15,018 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:19:15,219 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2021-07-10 02:19:15,219 INFO L628 ElimStorePlain]: treesize reduction 230, result has 56.4 percent of original size [2021-07-10 02:19:15,271 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 02:19:15,271 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:108, output treesize:74 [2021-07-10 02:19:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:19:15,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:19:15,860 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:15,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 80 [2021-07-10 02:19:15,889 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-10 02:19:15,901 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:15,909 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 02:19:15,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:85, output treesize:17 [2021-07-10 02:19:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:19:15,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286193951] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:15,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:19:15,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 39] total 66 [2021-07-10 02:19:15,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967349501] [2021-07-10 02:19:15,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-07-10 02:19:15,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:15,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-07-10 02:19:15,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=477, Invalid=3945, Unknown=0, NotChecked=0, Total=4422 [2021-07-10 02:19:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:15,995 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:15,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 1.835820895522388) internal successors, (123), 66 states have internal predecessors, (123), 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 02:19:15,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:15,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:15,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:15,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:19:15,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:19:17,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:19:17,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 02:19:17,544 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:17,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:17,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1217069542, now seen corresponding path program 3 times [2021-07-10 02:19:17,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:17,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823121996] [2021-07-10 02:19:17,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-07-10 02:19:17,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:17,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823121996] [2021-07-10 02:19:17,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823121996] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:17,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233482530] [2021-07-10 02:19:17,595 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 02:19:17,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-10 02:19:17,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:19:17,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 02:19:17,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 105 proven. 66 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-07-10 02:19:17,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233482530] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:17,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:19:17,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-10 02:19:17,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498483954] [2021-07-10 02:19:17,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-10 02:19:17,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:19:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-10 02:19:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-07-10 02:19:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:17,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:19:17,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:19:17,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:19:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:19:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:19:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:19:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:19:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:19:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:19:18,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:19:18,057 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:19:18,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:19:18,057 INFO L82 PathProgramCache]: Analyzing trace with hash -323705886, now seen corresponding path program 4 times [2021-07-10 02:19:18,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:19:18,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942664230] [2021-07-10 02:19:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:19:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:19:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-10 02:19:19,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:19:19,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942664230] [2021-07-10 02:19:19,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942664230] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:19:19,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474897853] [2021-07-10 02:19:19,423 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 02:19:19,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 02:19:19,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:19:19,480 WARN L261 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 95 conjunts are in the unsatisfiable core [2021-07-10 02:19:19,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:19:39,314 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-07-10 02:19:59,244 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-10 02:19:59,427 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-10 02:19:59,427 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:19:59,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 122 treesize of output 302 [2021-07-10 02:19:59,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:20:00,000 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 168 [2021-07-10 02:20:00,001 INFO L628 ElimStorePlain]: treesize reduction 347, result has 63.2 percent of original size [2021-07-10 02:20:00,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-10 02:20:00,199 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:140, output treesize:166 [2021-07-10 02:20:02,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:02,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 02:20:02,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 02:20:02,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 28 [2021-07-10 02:20:02,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 02:20:02,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 02:20:02,651 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 02:20:02,651 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:101, output treesize:5 [2021-07-10 02:20:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 18 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 02:20:02,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474897853] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:02,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:02,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 50] total 85 [2021-07-10 02:20:02,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15597436] [2021-07-10 02:20:02,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 86 states [2021-07-10 02:20:02,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:02,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-07-10 02:20:02,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=6719, Unknown=2, NotChecked=0, Total=7310 [2021-07-10 02:20:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:02,668 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:02,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 86 states, 86 states have (on average 1.755813953488372) internal successors, (151), 85 states have internal predecessors, (151), 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 02:20:02,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:02,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 02:20:04,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:20:04,499 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:04,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1728114866, now seen corresponding path program 5 times [2021-07-10 02:20:04,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:04,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713829082] [2021-07-10 02:20:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 150 proven. 149 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-07-10 02:20:04,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:04,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713829082] [2021-07-10 02:20:04,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713829082] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:04,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770729310] [2021-07-10 02:20:04,590 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 02:20:04,676 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-07-10 02:20:04,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:04,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-10 02:20:04,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 177 proven. 122 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-07-10 02:20:04,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770729310] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:04,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 02:20:04,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-10 02:20:04,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272957707] [2021-07-10 02:20:04,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 02:20:04,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 02:20:04,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 02:20:04,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-07-10 02:20:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:04,812 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 02:20:04,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-10 02:20:04,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 02:20:04,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-10 02:20:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 02:20:05,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-07-10 02:20:05,085 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 02:20:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 02:20:05,085 INFO L82 PathProgramCache]: Analyzing trace with hash 827679906, now seen corresponding path program 6 times [2021-07-10 02:20:05,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 02:20:05,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918898651] [2021-07-10 02:20:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 02:20:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 02:20:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-07-10 02:20:06,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 02:20:06,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918898651] [2021-07-10 02:20:06,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918898651] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 02:20:06,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188364311] [2021-07-10 02:20:06,932 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 02:20:07,008 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-07-10 02:20:07,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 02:20:07,011 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 118 conjunts are in the unsatisfiable core [2021-07-10 02:20:07,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 02:20:11,771 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-07-10 02:22:11,577 WARN L205 SmtUtils]: Spent 12.44 s on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-07-10 02:23:56,640 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-07-10 02:27:29,258 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-10 02:27:29,259 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-10 02:27:29,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 02:27:29,460 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:934) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 46 more [2021-07-10 02:27:29,463 INFO L168 Benchmark]: Toolchain (without parser) took 501494.25 ms. Allocated memory was 219.2 MB in the beginning and 530.6 MB in the end (delta: 311.4 MB). Free memory was 198.3 MB in the beginning and 288.7 MB in the end (delta: -90.4 MB). Peak memory consumption was 221.9 MB. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 219.2 MB. Free memory was 199.5 MB in the beginning and 199.4 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.55 ms. Allocated memory is still 219.2 MB. Free memory was 198.2 MB in the beginning and 196.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 INFO L168 Benchmark]: Boogie Preprocessor took 11.38 ms. Allocated memory is still 219.2 MB. Free memory was 196.8 MB in the beginning and 195.9 MB in the end (delta: 937.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 INFO L168 Benchmark]: RCFGBuilder took 226.51 ms. Allocated memory is still 219.2 MB. Free memory was 195.8 MB in the beginning and 183.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 INFO L168 Benchmark]: TraceAbstraction took 501230.25 ms. Allocated memory was 219.2 MB in the beginning and 530.6 MB in the end (delta: 311.4 MB). Free memory was 182.5 MB in the beginning and 288.7 MB in the end (delta: -106.2 MB). Peak memory consumption was 206.1 MB. Max. memory is 8.0 GB. [2021-07-10 02:27:29,464 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 0.14 ms. Allocated memory is still 219.2 MB. Free memory was 199.5 MB in the beginning and 199.4 MB in the end (delta: 82.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.55 ms. Allocated memory is still 219.2 MB. Free memory was 198.2 MB in the beginning and 196.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.38 ms. Allocated memory is still 219.2 MB. Free memory was 196.8 MB in the beginning and 195.9 MB in the end (delta: 937.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 226.51 ms. Allocated memory is still 219.2 MB. Free memory was 195.8 MB in the beginning and 183.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 501230.25 ms. Allocated memory was 219.2 MB in the beginning and 530.6 MB in the end (delta: 311.4 MB). Free memory was 182.5 MB in the beginning and 288.7 MB in the end (delta: -106.2 MB). Peak memory consumption was 206.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...