/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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp3x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 20:44:14,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 20:44:14,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 20:44:14,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 20:44:15,045 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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-06-14 20:44:15,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 20:44:15,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 20:44:15,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 20:44:15,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 20:44:15,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 20:44:15,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 20:44:15,076 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 20:44:15,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 20:44:15,076 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 20:44:15,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 20:44:15,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 20:44:15,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 20:44:15,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 20:44:15,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 20:44:15,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 20:44:15,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 20:44:15,080 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 20:44:15,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 20:44:15,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 20:44:15,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 20:44:15,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 20:44:15,336 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 20:44:15,336 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 20:44:15,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp3x3.wvr.bpl [2021-06-14 20:44:15,337 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp3x3.wvr.bpl' [2021-06-14 20:44:15,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 20:44:15,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 20:44:15,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 20:44:15,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 20:44:15,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 20:44:15,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 20:44:15,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 20:44:15,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 20:44:15,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 20:44:15,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... [2021-06-14 20:44:15,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 20:44:15,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 20:44:15,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 20:44:15,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 20:44:15,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 20:44:15,455 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 20:44:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 20:44:15,455 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 20:44:15,456 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 20:44:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 20:44:15,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 20:44:15,456 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 20:44:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 20:44:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 20:44:15,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 20:44:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 20:44:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 20:44:15,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-14 20:44:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-14 20:44:15,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-14 20:44:15,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-14 20:44:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-14 20:44:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-14 20:44:15,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-14 20:44:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-14 20:44:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-14 20:44:15,461 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 20:44:15,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 20:44:15,632 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 20:44:15,633 INFO L202 PluginConnector]: Adding new model exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 08:44:15 BoogieIcfgContainer [2021-06-14 20:44:15,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 20:44:15,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 20:44:15,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 20:44:15,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 20:44:15,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 08:44:15" (1/2) ... [2021-06-14 20:44:15,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a6a889 and model type exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 08:44:15, skipping insertion in model container [2021-06-14 20:44:15,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 08:44:15" (2/2) ... [2021-06-14 20:44:15,638 INFO L111 eAbstractionObserver]: Analyzing ICFG exp3x3.wvr.bpl [2021-06-14 20:44:15,658 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 20:44:15,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 20:44:15,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 20:44:15,659 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 20:44:15,726 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-14 20:44:15,740 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 20:44:15,817 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 20:44:15,818 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 20:44:15,818 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 20:44:15,818 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 20:44:15,818 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 20:44:15,818 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 20:44:15,818 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 20:44:15,818 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 20:44:15,958 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:15,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:15,962 INFO L82 PathProgramCache]: Analyzing trace with hash -547773212, now seen corresponding path program 1 times [2021-06-14 20:44:15,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:15,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218414082] [2021-06-14 20:44:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 201 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-14 20:44:16,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:16,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218414082] [2021-06-14 20:44:16,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218414082] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:16,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393942627] [2021-06-14 20:44:16,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:16,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-14 20:44:16,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 113 proven. 20 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-06-14 20:44:16,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393942627] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:16,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:16,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 15 [2021-06-14 20:44:16,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624934540] [2021-06-14 20:44:16,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-14 20:44:16,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:16,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-14 20:44:16,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-06-14 20:44:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:16,748 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:16,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:16,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 20:44:17,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-14 20:44:17,231 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:17,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:17,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1260258150, now seen corresponding path program 2 times [2021-06-14 20:44:17,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:17,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414614220] [2021-06-14 20:44:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 132 proven. 20 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-06-14 20:44:17,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:17,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414614220] [2021-06-14 20:44:17,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414614220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:17,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446676434] [2021-06-14 20:44:17,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:17,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 20:44:17,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 20:44:17,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 20:44:17,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 112 proven. 20 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-06-14 20:44:17,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446676434] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:17,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:17,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2021-06-14 20:44:17,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618817520] [2021-06-14 20:44:17,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 20:44:17,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:17,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 20:44:17,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-06-14 20:44:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:17,672 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:17,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.933333333333334) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:17,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 20:44:17,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:18,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:18,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:18,377 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:18,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:18,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1991660292, now seen corresponding path program 3 times [2021-06-14 20:44:18,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:18,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231920210] [2021-06-14 20:44:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 91 proven. 211 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-14 20:44:18,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:18,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231920210] [2021-06-14 20:44:18,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231920210] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:18,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45802334] [2021-06-14 20:44:18,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:18,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-14 20:44:18,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 20:44:18,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-14 20:44:18,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 277 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-06-14 20:44:19,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45802334] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:19,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:19,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 29 [2021-06-14 20:44:19,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82819461] [2021-06-14 20:44:19,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-14 20:44:19,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:19,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-14 20:44:19,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2021-06-14 20:44:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:19,671 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:19,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 6.233333333333333) internal successors, (187), 29 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:19,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:19,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:19,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-06-14 20:44:24,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:24,911 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:24,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:24,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1507366016, now seen corresponding path program 4 times [2021-06-14 20:44:24,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:24,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444680104] [2021-06-14 20:44:24,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 480 proven. 465 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-14 20:44:25,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:25,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444680104] [2021-06-14 20:44:25,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444680104] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:25,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499921026] [2021-06-14 20:44:25,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:25,302 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 20:44:25,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 20:44:25,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-14 20:44:25,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 750 proven. 78 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-06-14 20:44:26,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499921026] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:26,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:26,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19] total 41 [2021-06-14 20:44:26,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785939318] [2021-06-14 20:44:26,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-14 20:44:26,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:26,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-14 20:44:26,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2021-06-14 20:44:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:26,382 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:26,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 6.714285714285714) internal successors, (282), 41 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:26,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:26,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:26,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-06-14 20:44:26,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-06-14 20:44:29,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 20:44:29,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:29,715 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:29,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:29,715 INFO L82 PathProgramCache]: Analyzing trace with hash -8276556, now seen corresponding path program 5 times [2021-06-14 20:44:29,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:29,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508197025] [2021-06-14 20:44:29,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 197 proven. 120 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-06-14 20:44:29,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:29,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508197025] [2021-06-14 20:44:29,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508197025] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:29,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597069358] [2021-06-14 20:44:29,801 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:29,874 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-14 20:44:29,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 20:44:29,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-14 20:44:29,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 552 proven. 120 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-14 20:44:30,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597069358] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:30,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:30,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 19] total 21 [2021-06-14 20:44:30,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795469585] [2021-06-14 20:44:30,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-14 20:44:30,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:30,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-14 20:44:30,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-06-14 20:44:30,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:30,482 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:30,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 6.636363636363637) internal successors, (146), 21 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:30,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:30,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:30,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-06-14 20:44:30,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-14 20:44:30,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-06-14 20:44:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 20:44:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-14 20:44:33,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:33,271 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:33,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:33,272 INFO L82 PathProgramCache]: Analyzing trace with hash 332954334, now seen corresponding path program 6 times [2021-06-14 20:44:33,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:33,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063078429] [2021-06-14 20:44:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:33,404 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 350 proven. 78 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-06-14 20:44:33,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:33,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063078429] [2021-06-14 20:44:33,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063078429] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:33,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89915307] [2021-06-14 20:44:33,405 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:33,570 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-06-14 20:44:33,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 20:44:33,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-14 20:44:33,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 867 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-06-14 20:44:34,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89915307] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:34,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 20:44:34,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 25] total 28 [2021-06-14 20:44:34,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062066203] [2021-06-14 20:44:34,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-14 20:44:34,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 20:44:34,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-14 20:44:34,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=644, Unknown=0, NotChecked=0, Total=812 [2021-06-14 20:44:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:34,688 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 20:44:34,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 6.344827586206897) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-06-14 20:44:34,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 20:44:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-14 20:44:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 20:44:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-06-14 20:44:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-14 20:44:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-06-14 20:44:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-06-14 20:44:37,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:37,915 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-14 20:44:37,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 20:44:37,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1872132806, now seen corresponding path program 7 times [2021-06-14 20:44:37,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 20:44:37,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888737576] [2021-06-14 20:44:37,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 20:44:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2021-06-14 20:44:38,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 20:44:38,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888737576] [2021-06-14 20:44:38,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888737576] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 20:44:38,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600093584] [2021-06-14 20:44:38,287 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 20:44:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 20:44:38,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 151 conjunts are in the unsatisfiable core [2021-06-14 20:44:38,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 20:44:41,508 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-14 20:44:42,006 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-14 20:44:42,364 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-14 20:44:43,003 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-06-14 20:44:43,555 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-06-14 20:44:44,419 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-14 20:44:45,239 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-06-14 20:44:46,262 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-06-14 20:44:47,504 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-14 20:44:48,881 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-14 20:44:50,221 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-06-14 20:44:52,127 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-06-14 20:44:57,005 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-06-14 20:45:01,305 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-14 20:45:04,171 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-06-14 20:45:08,071 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-14 20:45:12,672 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2021-06-14 20:45:19,608 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-06-14 20:45:24,507 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-06-14 20:45:30,409 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-06-14 20:45:36,989 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2021-06-14 20:45:43,592 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-06-14 20:45:52,071 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-06-14 20:46:00,397 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-14 20:46:12,229 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-06-14 20:46:26,064 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-06-14 20:46:38,457 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-06-14 20:46:57,933 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2021-06-14 20:47:18,259 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-06-14 20:47:39,023 WARN L205 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2021-06-14 20:48:02,855 WARN L205 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2021-06-14 20:48:18,491 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2021-06-14 20:48:34,037 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2021-06-14 20:48:57,169 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 297 [2021-06-14 20:49:22,844 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2021-06-14 20:49:49,816 WARN L205 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 309 [2021-06-14 20:50:15,463 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 317 [2021-06-14 20:50:42,557 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 323 [2021-06-14 20:51:22,368 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 326 [2021-06-14 20:51:39,758 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 329 [2021-06-14 20:51:45,770 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2021-06-14 20:51:51,284 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 335 [2021-06-14 20:51:59,546 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification that was a NOOP. DAG size: 342 [2021-06-14 20:52:10,421 WARN L205 SmtUtils]: Spent 9.14 s on a formula simplification. DAG size of input: 349 DAG size of output: 346 [2021-06-14 20:52:17,921 WARN L205 SmtUtils]: Spent 2.88 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-14 20:52:29,497 WARN L205 SmtUtils]: Spent 4.60 s on a formula simplification that was a NOOP. DAG size: 359 [2021-06-14 20:52:36,745 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 362 [2021-06-14 20:52:47,870 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 365 [2021-06-14 20:52:48,450 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-14 20:52:48,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-14 20:52:48,669 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Possible infinite loop detected aux_div_aux_div_aux_mod_x2_24_53_127 already exists at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:212) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:408) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:312) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:328) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:231) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:149) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminate(DualJunctionDer.java:127) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:869) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:835) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:753) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:384) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:316) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.convert(QuantifierPusher.java:227) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$LiveVariablesPostprocessorForward.postprocess(TraceCheckSpWp.java:539) 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:561) 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:364) 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) [2021-06-14 20:52:48,673 INFO L168 Benchmark]: Toolchain (without parser) took 513308.75 ms. Allocated memory was 183.5 MB in the beginning and 621.8 MB in the end (delta: 438.3 MB). Free memory was 162.3 MB in the beginning and 567.9 MB in the end (delta: -405.7 MB). Peak memory consumption was 403.5 MB. Max. memory is 8.0 GB. [2021-06-14 20:52:48,673 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 183.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 20:52:48,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.60 ms. Allocated memory is still 183.5 MB. Free memory was 162.2 MB in the beginning and 160.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 20:52:48,673 INFO L168 Benchmark]: Boogie Preprocessor took 12.89 ms. Allocated memory is still 183.5 MB. Free memory was 160.7 MB in the beginning and 159.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-14 20:52:48,674 INFO L168 Benchmark]: RCFGBuilder took 231.92 ms. Allocated memory is still 183.5 MB. Free memory was 159.6 MB in the beginning and 146.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-14 20:52:48,674 INFO L168 Benchmark]: TraceAbstraction took 513038.27 ms. Allocated memory was 183.5 MB in the beginning and 621.8 MB in the end (delta: 438.3 MB). Free memory was 146.3 MB in the beginning and 567.9 MB in the end (delta: -421.6 MB). Peak memory consumption was 387.8 MB. Max. memory is 8.0 GB. [2021-06-14 20:52:48,674 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 0.11 ms. Allocated memory is still 183.5 MB. Free memory is still 163.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.60 ms. Allocated memory is still 183.5 MB. Free memory was 162.2 MB in the beginning and 160.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.89 ms. Allocated memory is still 183.5 MB. Free memory was 160.7 MB in the beginning and 159.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 231.92 ms. Allocated memory is still 183.5 MB. Free memory was 159.6 MB in the beginning and 146.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 513038.27 ms. Allocated memory was 183.5 MB in the beginning and 621.8 MB in the end (delta: 438.3 MB). Free memory was 146.3 MB in the beginning and 567.9 MB in the end (delta: -421.6 MB). Peak memory consumption was 387.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Possible infinite loop detected aux_div_aux_div_aux_mod_x2_24_53_127 already exists de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Possible infinite loop detected aux_div_aux_div_aux_mod_x2_24_53_127 already exists: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...