/usr/bin/java -Xmx16000000000 -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-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:08:40,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:08:40,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:08:40,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 21:08:40,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 21:08:40,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 21:08:40,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 21:08:40,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 21:08:40,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 21:08:40,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 21:08:40,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 21:08:40,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 21:08:40,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 21:08:40,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 21:08:40,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 21:08:40,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 21:08:40,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 21:08:40,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 21:08:40,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 21:08:40,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 21:08:40,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 21:08:40,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 21:08:40,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 21:08:40,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 21:08:40,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 21:08:40,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 21:08:40,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 21:08:40,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 21:08:40,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 21:08:40,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-02-19 21:08:40,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 21:08:40,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 21:08:40,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 21:08:40,323 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-Sleep-NoLbe-Delay.epf [2021-02-19 21:08:40,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:08:40,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:08:40,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:08:40,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:08:40,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:08:40,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:08:40,344 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:08:40,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:08:40,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:08:40,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:08:40,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:08:40,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:08:40,347 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:08:40,348 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:08:40,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:08:40,348 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:08:40,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:08:40,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:08:40,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:08:40,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:08:40,603 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:08:40,604 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:08:40,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl [2021-02-19 21:08:40,605 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x4.wvr.bpl' [2021-02-19 21:08:40,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:08:40,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:08:40,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:08:40,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:08:40,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:08:40,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:08:40,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:08:40,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:08:40,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:08:40,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/1) ... [2021-02-19 21:08:40,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:08:40,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:08:40,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:08:40,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:08:40,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (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 [2021-02-19 21:08:40,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:08:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:08:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:08:40,745 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:08:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:08:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:08:40,746 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:08:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:08:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:08:40,747 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 21:08:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 21:08:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 21:08:40,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-02-19 21:08:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-02-19 21:08:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-02-19 21:08:40,750 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:08:40,901 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:08:40,901 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 21:08:40,908 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:08:40 BoogieIcfgContainer [2021-02-19 21:08:40,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:08:40,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:08:40,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:08:40,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:08:40,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:08:40" (1/2) ... [2021-02-19 21:08:40,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccce076 and model type exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:08:40, skipping insertion in model container [2021-02-19 21:08:40,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:08:40" (2/2) ... [2021-02-19 21:08:40,925 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x4.wvr.bpl [2021-02-19 21:08:40,929 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:08:40,929 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:08:40,932 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:08:40,932 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:08:40,985 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-02-19 21:08:41,001 INFO L253 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 [2021-02-19 21:08:41,035 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:08:41,035 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:08:41,036 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 21:08:41,036 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:08:41,036 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:08:41,036 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:08:41,036 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:08:41,036 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 21:08:41,133 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:41,137 INFO L82 PathProgramCache]: Analyzing trace with hash -267707424, now seen corresponding path program 1 times [2021-02-19 21:08:41,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:41,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164548513] [2021-02-19 21:08:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:41,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164548513] [2021-02-19 21:08:41,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:08:41,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 21:08:41,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123642721] [2021-02-19 21:08:41,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 21:08:41,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:41,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 21:08:41,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 21:08:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:41,333 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:41,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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) [2021-02-19 21:08:41,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:41,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 21:08:41,490 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:41,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:41,492 INFO L82 PathProgramCache]: Analyzing trace with hash -95377592, now seen corresponding path program 1 times [2021-02-19 21:08:41,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:41,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670391177] [2021-02-19 21:08:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:41,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670391177] [2021-02-19 21:08:41,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594868912] [2021-02-19 21:08:41,557 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 [2021-02-19 21:08:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:41,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2021-02-19 21:08:41,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:08:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:41,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:08:41,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-02-19 21:08:41,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596210689] [2021-02-19 21:08:41,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 21:08:41,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:41,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 21:08:41,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 21:08:41,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:41,729 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:41,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-02-19 21:08:41,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:41,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:42,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:08:42,012 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2019140415, now seen corresponding path program 1 times [2021-02-19 21:08:42,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:42,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879235059] [2021-02-19 21:08:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:42,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879235059] [2021-02-19 21:08:42,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343744688] [2021-02-19 21:08:42,140 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 [2021-02-19 21:08:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:42,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-19 21:08:42,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:08:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:42,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:08:42,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 6 [2021-02-19 21:08:42,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927346886] [2021-02-19 21:08:42,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 21:08:42,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:42,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 21:08:42,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-19 21:08:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:42,528 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:42,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-02-19 21:08:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:42,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:42,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:42,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:42,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:08:42,822 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:42,823 INFO L82 PathProgramCache]: Analyzing trace with hash 2056454311, now seen corresponding path program 2 times [2021-02-19 21:08:42,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:42,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318877983] [2021-02-19 21:08:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:42,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318877983] [2021-02-19 21:08:42,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148498305] [2021-02-19 21:08:42,887 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 [2021-02-19 21:08:42,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 21:08:42,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:08:42,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 21:08:42,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 21:08:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:43,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 21:08:43,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-02-19 21:08:43,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354434348] [2021-02-19 21:08:43,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-19 21:08:43,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:08:43,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-19 21:08:43,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-19 21:08:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:43,041 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:08:43,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 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) [2021-02-19 21:08:43,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:43,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:43,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:43,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:08:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:08:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 21:08:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 21:08:43,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:08:43,591 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:08:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:08:43,591 INFO L82 PathProgramCache]: Analyzing trace with hash 561502592, now seen corresponding path program 3 times [2021-02-19 21:08:43,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:08:43,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860923835] [2021-02-19 21:08:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:08:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:08:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:08:43,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860923835] [2021-02-19 21:08:43,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532617570] [2021-02-19 21:08:43,707 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 [2021-02-19 21:08:43,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 21:08:43,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 21:08:43,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 21 conjunts are in the unsatisfiable core [2021-02-19 21:08:43,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-02-19 21:18:09,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 21:18:09,833 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 21:18:09,836 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 21:18:09,837 INFO L202 PluginConnector]: Adding new model exp2x4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:18:09 BasicIcfg [2021-02-19 21:18:09,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:18:09,837 INFO L168 Benchmark]: Toolchain (without parser) took 569197.48 ms. Allocated memory was 255.9 MB in the beginning and 828.4 MB in the end (delta: 572.5 MB). Free memory was 236.6 MB in the beginning and 246.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 844.2 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,837 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:18:09,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,838 INFO L168 Benchmark]: Boogie Preprocessor took 15.39 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 997.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,838 INFO L168 Benchmark]: RCFGBuilder took 222.28 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 238.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,838 INFO L168 Benchmark]: TraceAbstraction took 568915.85 ms. Allocated memory was 255.9 MB in the beginning and 828.4 MB in the end (delta: 572.5 MB). Free memory was 238.2 MB in the beginning and 246.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 845.2 MB. Max. memory is 16.0 GB. [2021-02-19 21:18:09,838 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 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.39 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 233.6 MB in the end (delta: 997.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 222.28 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 238.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 568915.85 ms. Allocated memory was 255.9 MB in the beginning and 828.4 MB in the end (delta: 572.5 MB). Free memory was 238.2 MB in the beginning and 246.5 MB in the end (delta: -8.3 MB). Peak memory consumption was 845.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 63). Cancelled while PartialOrderCegarLoop was analyzing trace of length 32 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 406 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 568.8s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 29700 SizeOfPredicates, 8 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown