/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 02:49:22,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 02:49:22,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 02:49:22,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 02:49:22,996 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-Persistent-NoLbe.epf [2021-06-17 02:49:23,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 02:49:23,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 02:49:23,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 02:49:23,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 02:49:23,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 02:49:23,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 02:49:23,027 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 02:49:23,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 02:49:23,028 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 02:49:23,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 02:49:23,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 02:49:23,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 02:49:23,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 02:49:23,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 02:49:23,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 02:49:23,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 02:49:23,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 02:49:23,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 02:49:23,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 02:49:23,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 02:49:23,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 02:49:23,039 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-17 02:49:23,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 02:49:23,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 02:49:23,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 02:49:23,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 02:49:23,262 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 02:49:23,263 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 02:49:23,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl [2021-06-17 02:49:23,263 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x3.wvr.bpl' [2021-06-17 02:49:23,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 02:49:23,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 02:49:23,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 02:49:23,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 02:49:23,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 02:49:23,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 02:49:23,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 02:49:23,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 02:49:23,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 02:49:23,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/1) ... [2021-06-17 02:49:23,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 02:49:23,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 02:49:23,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 02:49:23,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 02:49:23,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (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 [2021-06-17 02:49:23,384 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 02:49:23,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 02:49:23,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 02:49:23,385 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 02:49:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 02:49:23,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 02:49:23,385 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 02:49:23,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 02:49:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 02:49:23,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 02:49:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 02:49:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 02:49:23,387 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-17 02:49:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-17 02:49:23,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-17 02:49:23,387 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 02:49:23,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 02:49:23,546 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 02:49:23,547 INFO L202 PluginConnector]: Adding new model exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:49:23 BoogieIcfgContainer [2021-06-17 02:49:23,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 02:49:23,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 02:49:23,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 02:49:23,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 02:49:23,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:49:23" (1/2) ... [2021-06-17 02:49:23,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b84f13b and model type exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 02:49:23, skipping insertion in model container [2021-06-17 02:49:23,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:49:23" (2/2) ... [2021-06-17 02:49:23,552 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x3.wvr.bpl [2021-06-17 02:49:23,556 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 02:49:23,556 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 02:49:23,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 02:49:23,557 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 02:49:23,650 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-17 02:49:23,664 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-06-17 02:49:23,722 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 02:49:23,722 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 02:49:23,722 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 02:49:23,722 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 02:49:23,722 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 02:49:23,723 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 02:49:23,723 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 02:49:23,723 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 02:49:23,803 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:23,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:23,816 INFO L82 PathProgramCache]: Analyzing trace with hash -609367295, now seen corresponding path program 1 times [2021-06-17 02:49:23,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:23,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101551634] [2021-06-17 02:49:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:23,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:23,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101551634] [2021-06-17 02:49:23,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101551634] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:23,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537384961] [2021-06-17 02:49:23,956 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 [2021-06-17 02:49:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:23,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-17 02:49:24,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:24,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537384961] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:24,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:24,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-17 02:49:24,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186249422] [2021-06-17 02:49:24,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 02:49:24,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:24,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 02:49:24,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 02:49:24,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:24,099 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:24,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-06-17 02:49:24,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:24,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-17 02:49:24,360 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:24,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1603288783, now seen corresponding path program 1 times [2021-06-17 02:49:24,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:24,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286857856] [2021-06-17 02:49:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:49:24,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:24,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286857856] [2021-06-17 02:49:24,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286857856] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:24,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406106828] [2021-06-17 02:49:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-17 02:49:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:24,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-17 02:49:24,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:49:24,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406106828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:24,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:24,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 7 [2021-06-17 02:49:24,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726145769] [2021-06-17 02:49:24,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-17 02:49:24,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:24,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-17 02:49:24,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-17 02:49:24,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:24,819 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:24,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-06-17 02:49:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:24,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:25,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:25,121 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:25,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1483669173, now seen corresponding path program 2 times [2021-06-17 02:49:25,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:25,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710723002] [2021-06-17 02:49:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:25,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:25,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710723002] [2021-06-17 02:49:25,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710723002] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:25,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693527519] [2021-06-17 02:49:25,173 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 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 [2021-06-17 02:49:25,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:49:25,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:25,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 02:49:25,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:25,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693527519] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:25,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:25,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-17 02:49:25,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708987360] [2021-06-17 02:49:25,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 02:49:25,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:25,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 02:49:25,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 02:49:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:25,458 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:25,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-17 02:49:25,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:25,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:25,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:25,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:25,782 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:25,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:25,782 INFO L82 PathProgramCache]: Analyzing trace with hash 923991499, now seen corresponding path program 3 times [2021-06-17 02:49:25,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:25,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640788605] [2021-06-17 02:49:25,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:25,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:25,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640788605] [2021-06-17 02:49:25,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640788605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:25,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882733345] [2021-06-17 02:49:25,859 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 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 [2021-06-17 02:49:25,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 02:49:25,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:25,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-17 02:49:25,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:26,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882733345] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:26,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:26,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-06-17 02:49:26,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574197269] [2021-06-17 02:49:26,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-17 02:49:26,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:26,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-17 02:49:26,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-17 02:49:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:26,025 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:26,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 13 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 02:49:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:26,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:26,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:26,425 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:26,425 INFO L82 PathProgramCache]: Analyzing trace with hash 481087181, now seen corresponding path program 4 times [2021-06-17 02:49:26,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:26,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808147659] [2021-06-17 02:49:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:26,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:26,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808147659] [2021-06-17 02:49:26,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808147659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:26,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662711102] [2021-06-17 02:49:26,521 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 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 [2021-06-17 02:49:26,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 02:49:26,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:26,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 02:49:26,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:26,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662711102] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:26,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:26,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-06-17 02:49:26,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208643634] [2021-06-17 02:49:26,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 02:49:26,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:26,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 02:49:26,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-06-17 02:49:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:26,790 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:26,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 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) [2021-06-17 02:49:26,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:26,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:26,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:26,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:26,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:27,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:27,564 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:27,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1964751823, now seen corresponding path program 5 times [2021-06-17 02:49:27,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:27,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442878734] [2021-06-17 02:49:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:49:27,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:27,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442878734] [2021-06-17 02:49:27,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442878734] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:27,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291716377] [2021-06-17 02:49:27,719 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 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 [2021-06-17 02:49:27,768 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-17 02:49:27,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:27,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-17 02:49:27,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:49:28,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291716377] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:28,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:28,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16] total 17 [2021-06-17 02:49:28,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286880896] [2021-06-17 02:49:28,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-17 02:49:28,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:28,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-17 02:49:28,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-17 02:49:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:28,755 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:28,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 17 states have internal predecessors, (75), 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) [2021-06-17 02:49:28,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:28,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:28,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:28,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:28,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:28,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:29,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:29,244 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:29,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1052874677, now seen corresponding path program 6 times [2021-06-17 02:49:29,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:29,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729290017] [2021-06-17 02:49:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:29,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:29,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729290017] [2021-06-17 02:49:29,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729290017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:29,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972492915] [2021-06-17 02:49:29,408 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 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 [2021-06-17 02:49:29,443 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-06-17 02:49:29,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:29,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-17 02:49:29,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:30,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972492915] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:30,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:30,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2021-06-17 02:49:30,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766798960] [2021-06-17 02:49:30,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 02:49:30,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:30,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 02:49:30,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-06-17 02:49:30,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:30,385 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:30,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.6875) internal successors, (86), 31 states have internal predecessors, (86), 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) [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:30,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 02:49:31,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-17 02:49:31,022 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1581569099, now seen corresponding path program 7 times [2021-06-17 02:49:31,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:31,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826052462] [2021-06-17 02:49:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 128 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:31,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:31,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826052462] [2021-06-17 02:49:31,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826052462] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:31,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656182723] [2021-06-17 02:49:31,196 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 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 [2021-06-17 02:49:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:31,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-17 02:49:31,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:31,693 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 128 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:31,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656182723] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:31,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:31,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-06-17 02:49:31,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981553855] [2021-06-17 02:49:31,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-17 02:49:31,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:31,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-17 02:49:31,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=748, Unknown=0, NotChecked=0, Total=812 [2021-06-17 02:49:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:31,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:31,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.6551724137931036) internal successors, (77), 28 states have internal predecessors, (77), 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) [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 02:49:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 02:49:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 02:49:32,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:32,481 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:32,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:32,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1018585037, now seen corresponding path program 8 times [2021-06-17 02:49:32,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:32,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677257661] [2021-06-17 02:49:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:32,693 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:32,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:32,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677257661] [2021-06-17 02:49:32,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677257661] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:32,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077737949] [2021-06-17 02:49:32,694 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:32,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 02:49:32,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:32,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-17 02:49:32,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 02:49:33,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077737949] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:33,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 02:49:33,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 31 [2021-06-17 02:49:33,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594342667] [2021-06-17 02:49:33,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 02:49:33,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 02:49:33,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 02:49:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=921, Unknown=0, NotChecked=0, Total=992 [2021-06-17 02:49:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:33,371 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 02:49:33,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.625) internal successors, (84), 31 states have internal predecessors, (84), 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) [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 02:49:33,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 02:49:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 02:49:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 02:49:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-17 02:49:35,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:35,666 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 02:49:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 02:49:35,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1397546545, now seen corresponding path program 9 times [2021-06-17 02:49:35,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 02:49:35,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390094387] [2021-06-17 02:49:35,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 02:49:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 02:49:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 02:49:35,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 02:49:35,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390094387] [2021-06-17 02:49:35,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390094387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 02:49:35,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223900125] [2021-06-17 02:49:35,889 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 02:49:35,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-06-17 02:49:35,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 02:49:35,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 53 conjunts are in the unsatisfiable core [2021-06-17 02:49:35,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 02:49:38,907 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-17 02:49:39,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-17 02:49:39,114 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_x2_10_133 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.findTreatableDivModSubterm(SolveForSubjectUtils.java:573) 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:363) 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) [2021-06-17 02:49:39,120 INFO L168 Benchmark]: Toolchain (without parser) took 15835.92 ms. Allocated memory was 203.4 MB in the beginning and 433.1 MB in the end (delta: 229.6 MB). Free memory was 183.4 MB in the beginning and 339.7 MB in the end (delta: -156.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 8.0 GB. [2021-06-17 02:49:39,120 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 203.4 MB. Free memory is still 184.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 02:49:39,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.18 ms. Allocated memory is still 203.4 MB. Free memory was 183.3 MB in the beginning and 181.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 02:49:39,121 INFO L168 Benchmark]: Boogie Preprocessor took 11.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 180.9 MB in the end (delta: 997.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 02:49:39,121 INFO L168 Benchmark]: RCFGBuilder took 226.79 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 169.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-17 02:49:39,121 INFO L168 Benchmark]: TraceAbstraction took 15571.56 ms. Allocated memory was 203.4 MB in the beginning and 433.1 MB in the end (delta: 229.6 MB). Free memory was 169.0 MB in the beginning and 339.7 MB in the end (delta: -170.8 MB). Peak memory consumption was 59.4 MB. Max. memory is 8.0 GB. [2021-06-17 02:49:39,121 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 0.12 ms. Allocated memory is still 203.4 MB. Free memory is still 184.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.18 ms. Allocated memory is still 203.4 MB. Free memory was 183.3 MB in the beginning and 181.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 180.9 MB in the end (delta: 997.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 226.79 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 169.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15571.56 ms. Allocated memory was 203.4 MB in the beginning and 433.1 MB in the end (delta: 229.6 MB). Free memory was 169.0 MB in the beginning and 339.7 MB in the end (delta: -170.8 MB). Peak memory consumption was 59.4 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_x2_10_133 already exists de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_133 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...