/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-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 19:56:23,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 19:56:23,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 19:56:23,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 19:56:23,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 19:56:23,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 19:56:23,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 19:56:23,463 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-None-NoLbe.epf [2021-07-09 19:56:23,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 19:56:23,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 19:56:23,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 19:56:23,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 19:56:23,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 19:56:23,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 19:56:23,485 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 19:56:23,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 19:56:23,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 19:56:23,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 19:56:23,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 19:56:23,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 19:56:23,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 19:56:23,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 19:56:23,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 19:56:23,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 19:56:23,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 19:56:23,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 19:56:23,507 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 19:56:23,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-09 19:56:23,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 19:56:23,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 19:56:23,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 19:56:23,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 19:56:23,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 19:56:23,870 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 19:56:23,871 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 19:56:23,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl [2021-07-09 19:56:23,872 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x6.wvr.bpl' [2021-07-09 19:56:23,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 19:56:23,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 19:56:23,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 19:56:23,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 19:56:23,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 19:56:23,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 19:56:23,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 19:56:23,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 19:56:23,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 19:56:23,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/1) ... [2021-07-09 19:56:23,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 19:56:23,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 19:56:23,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 19:56:23,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 19:56:23,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (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 [2021-07-09 19:56:24,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 19:56:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 19:56:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 19:56:24,023 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 19:56:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 19:56:24,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 19:56:24,023 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 19:56:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 19:56:24,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 19:56:24,024 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 19:56:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 19:56:24,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 19:56:24,026 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-09 19:56:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-09 19:56:24,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-09 19:56:24,027 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 19:56:24,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 19:56:24,186 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 19:56:24,187 INFO L202 PluginConnector]: Adding new model exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 07:56:24 BoogieIcfgContainer [2021-07-09 19:56:24,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 19:56:24,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 19:56:24,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 19:56:24,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 19:56:24,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 07:56:23" (1/2) ... [2021-07-09 19:56:24,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41edcc8b and model type exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 07:56:24, skipping insertion in model container [2021-07-09 19:56:24,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 07:56:24" (2/2) ... [2021-07-09 19:56:24,193 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x6.wvr.bpl [2021-07-09 19:56:24,197 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 19:56:24,198 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 19:56:24,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 19:56:24,198 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 19:56:24,236 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-09 19:56:24,254 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 [2021-07-09 19:56:24,306 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 19:56:24,307 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 19:56:24,307 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 19:56:24,307 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 19:56:24,307 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 19:56:24,307 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 19:56:24,307 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 19:56:24,307 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 19:56:24,315 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 45 transitions, 122 flow [2021-07-09 19:56:24,476 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3204 states, 3203 states have (on average 3.9572275991258197) internal successors, (12675), 3203 states have internal predecessors, (12675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:56:24,494 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:56:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:56:24,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1579019146, now seen corresponding path program 1 times [2021-07-09 19:56:24,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:56:24,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115356758] [2021-07-09 19:56:24,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:56:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:56:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-07-09 19:56:25,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:56:25,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115356758] [2021-07-09 19:56:25,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115356758] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:56:25,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239400034] [2021-07-09 19:56:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:56:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:56:25,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-09 19:56:25,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:56:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-07-09 19:56:26,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239400034] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:56:26,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 19:56:26,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 27 [2021-07-09 19:56:26,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357585567] [2021-07-09 19:56:26,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 19:56:26,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 19:56:26,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 19:56:26,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=695, Unknown=0, NotChecked=0, Total=756 [2021-07-09 19:56:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:56:26,399 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 19:56:26,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.8214285714285716) internal successors, (79), 27 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 19:56:26,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 19:56:28,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 19:56:28,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-09 19:56:28,272 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 19:56:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 19:56:28,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1751404779, now seen corresponding path program 2 times [2021-07-09 19:56:28,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 19:56:28,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386756911] [2021-07-09 19:56:28,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 19:56:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 19:56:29,826 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 19:56:29,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 19:56:29,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386756911] [2021-07-09 19:56:29,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386756911] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 19:56:29,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269870466] [2021-07-09 19:56:29,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 19:56:29,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 19:56:29,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 19:56:29,899 WARN L261 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 133 conjunts are in the unsatisfiable core [2021-07-09 19:56:29,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 19:56:45,710 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-07-09 19:56:48,861 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-07-09 19:56:51,380 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-07-09 19:56:52,747 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-09 19:56:56,440 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-07-09 19:56:59,150 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-07-09 19:57:01,573 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-09 19:57:04,426 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-07-09 19:57:09,225 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-07-09 19:57:14,406 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-07-09 19:57:24,096 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-07-09 19:57:35,584 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-07-09 19:57:46,254 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-07-09 19:57:55,744 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-07-09 19:58:04,006 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-07-09 19:58:09,033 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-07-09 19:58:17,841 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-07-09 19:58:28,390 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-09 19:58:33,194 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-07-09 19:58:40,123 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2021-07-09 19:58:48,470 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2021-07-09 19:58:53,090 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-07-09 19:59:04,175 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-07-09 19:59:14,855 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-07-09 19:59:28,640 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-07-09 19:59:34,716 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-07-09 19:59:47,966 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-07-09 20:00:00,397 WARN L205 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-07-09 20:00:12,876 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-07-09 20:00:19,570 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-07-09 20:00:32,572 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-07-09 20:00:39,263 WARN L205 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-07-09 20:00:46,998 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2021-07-09 20:00:55,304 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-07-09 20:01:07,354 WARN L205 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-07-09 20:01:17,630 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 266 [2021-07-09 20:01:26,509 WARN L205 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-07-09 20:01:35,781 WARN L205 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-07-09 20:01:49,861 WARN L205 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2021-07-09 20:02:03,896 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 290 [2021-07-09 20:02:21,557 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 296 [2021-07-09 20:02:51,565 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 302 [2021-07-09 20:02:55,139 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-09 20:02:55,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 20:02:55,341 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_24_247 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.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:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-09 20:02:55,350 INFO L168 Benchmark]: Toolchain (without parser) took 391443.49 ms. Allocated memory was 206.6 MB in the beginning and 294.6 MB in the end (delta: 88.1 MB). Free memory was 187.6 MB in the beginning and 138.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 185.4 MB. Max. memory is 8.0 GB. [2021-07-09 20:02:55,350 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 206.6 MB. Free memory is still 188.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 20:02:55,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 206.6 MB. Free memory was 187.5 MB in the beginning and 186.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 20:02:55,351 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 ms. Allocated memory is still 206.6 MB. Free memory was 186.0 MB in the beginning and 185.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 20:02:55,351 INFO L168 Benchmark]: RCFGBuilder took 233.64 ms. Allocated memory is still 206.6 MB. Free memory was 184.9 MB in the beginning and 172.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 20:02:55,351 INFO L168 Benchmark]: TraceAbstraction took 391160.18 ms. Allocated memory was 206.6 MB in the beginning and 294.6 MB in the end (delta: 88.1 MB). Free memory was 171.8 MB in the beginning and 138.3 MB in the end (delta: 33.5 MB). Peak memory consumption was 169.7 MB. Max. memory is 8.0 GB. [2021-07-09 20:02:55,353 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 206.6 MB. Free memory is still 188.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.49 ms. Allocated memory is still 206.6 MB. Free memory was 187.5 MB in the beginning and 186.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.76 ms. Allocated memory is still 206.6 MB. Free memory was 186.0 MB in the beginning and 185.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 233.64 ms. Allocated memory is still 206.6 MB. Free memory was 184.9 MB in the beginning and 172.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 391160.18 ms. Allocated memory was 206.6 MB in the beginning and 294.6 MB in the end (delta: 88.1 MB). Free memory was 171.8 MB in the beginning and 138.3 MB in the end (delta: 33.5 MB). Peak memory consumption was 169.7 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_24_247 already exists de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_24_247 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...