/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-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 14:28:54,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 14:28:54,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 14:28:54,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 14:28:54,562 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-DelaySleep-NoLbe-Lockstep.epf [2021-06-30 14:28:54,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 14:28:54,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 14:28:54,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 14:28:54,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 14:28:54,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 14:28:54,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 14:28:54,610 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 14:28:54,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 14:28:54,611 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 14:28:54,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 14:28:54,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 14:28:54,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 14:28:54,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 14:28:54,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 14:28:54,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 14:28:54,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 14:28:54,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 14:28:54,614 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-30 14:28:54,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 14:28:54,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 14:28:54,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 14:28:54,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 14:28:54,894 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 14:28:54,895 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 14:28:54,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr11.bpl [2021-06-30 14:28:54,896 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr11.bpl' [2021-06-30 14:28:54,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 14:28:54,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 14:28:54,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 14:28:54,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 14:28:54,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 14:28:54,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 14:28:54,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 14:28:54,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 14:28:54,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 14:28:54,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/1) ... [2021-06-30 14:28:54,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 14:28:54,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 14:28:54,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 14:28:54,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 14:28:54,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (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 [2021-06-30 14:28:54,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 14:28:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 14:28:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 14:28:54,996 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 14:28:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 14:28:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 14:28:54,997 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 14:28:55,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 14:28:55,094 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 14:28:55,095 INFO L202 PluginConnector]: Adding new model incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:28:55 BoogieIcfgContainer [2021-06-30 14:28:55,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 14:28:55,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 14:28:55,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 14:28:55,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 14:28:55,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:28:54" (1/2) ... [2021-06-30 14:28:55,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b874e1 and model type incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 02:28:55, skipping insertion in model container [2021-06-30 14:28:55,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:28:55" (2/2) ... [2021-06-30 14:28:55,100 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr11.bpl [2021-06-30 14:28:55,103 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 14:28:55,104 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 14:28:55,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 14:28:55,104 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 14:28:55,207 INFO L149 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2021-06-30 14:28:55,222 INFO L255 AbstractCegarLoop]: Starting to check reachability of 12 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 [2021-06-30 14:28:55,280 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 14:28:55,280 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 14:28:55,280 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 14:28:55,281 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 14:28:55,286 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 14:28:55,286 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 14:28:55,287 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 14:28:55,287 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 14:28:55,447 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-30 14:28:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:28:55,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1740553804, now seen corresponding path program 1 times [2021-06-30 14:28:55,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:28:55,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356321701] [2021-06-30 14:28:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:28:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:28:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-30 14:28:55,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:28:55,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356321701] [2021-06-30 14:28:55,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356321701] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:28:55,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692788188] [2021-06-30 14:28:55,687 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 [2021-06-30 14:28:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:28:55,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-30 14:28:55,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:28:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-30 14:28:56,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692788188] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:28:56,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:28:56,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 14:28:56,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935813199] [2021-06-30 14:28:56,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 14:28:56,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:28:56,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 14:28:56,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 14:28:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:28:56,120 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:28:56,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2021-06-30 14:28:56,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:31:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 14:31:08,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 14:31:08,393 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 14:31:08,396 INFO L202 PluginConnector]: Adding new model incr-decr11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 02:31:08 BasicIcfg [2021-06-30 14:31:08,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 14:31:08,397 INFO L168 Benchmark]: Toolchain (without parser) took 133484.65 ms. Allocated memory was 189.8 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 169.8 MB in the beginning and 3.6 GB in the end (delta: -3.4 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-06-30 14:31:08,397 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 189.8 MB. Free memory is still 170.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 14:31:08,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 189.8 MB. Free memory was 169.7 MB in the beginning and 168.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 14:31:08,399 INFO L168 Benchmark]: Boogie Preprocessor took 10.18 ms. Allocated memory is still 189.8 MB. Free memory was 168.2 MB in the beginning and 167.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 14:31:08,399 INFO L168 Benchmark]: RCFGBuilder took 152.87 ms. Allocated memory is still 189.8 MB. Free memory was 167.2 MB in the beginning and 157.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-06-30 14:31:08,399 INFO L168 Benchmark]: TraceAbstraction took 133299.62 ms. Allocated memory was 189.8 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 156.9 MB in the beginning and 3.6 GB in the end (delta: -3.4 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-06-30 14:31:08,402 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 189.8 MB. Free memory is still 170.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 189.8 MB. Free memory was 169.7 MB in the beginning and 168.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.18 ms. Allocated memory is still 189.8 MB. Free memory was 168.2 MB in the beginning and 167.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 152.87 ms. Allocated memory is still 189.8 MB. Free memory was 167.2 MB in the beginning and 157.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 133299.62 ms. Allocated memory was 189.8 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 156.9 MB in the beginning and 3.6 GB in the end (delta: -3.4 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8312667, positive: 8050294, positive conditional: 8050294, positive unconditional: 0, negative: 262373, negative conditional: 262373, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 8050294, positive: 8050294, positive conditional: 8050294, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 8050294, positive: 8050294, positive conditional: 0, positive unconditional: 8050294, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1261, positive: 1261, positive conditional: 0, positive unconditional: 1261, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1261, positive: 928, positive conditional: 0, positive unconditional: 928, negative: 333, negative conditional: 0, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 333, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 333, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 503, positive: 503, positive conditional: 0, positive unconditional: 503, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8050294, positive: 8049033, positive conditional: 0, positive unconditional: 8049033, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1261, unknown conditional: 0, unknown unconditional: 1261] , Statistics on independence cache: Total cache size (in pairs): 1261, Positive cache size: 1261, Positive conditional cache size: 0, Positive unconditional cache size: 1261, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 333, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 503, positive: 503, positive conditional: 0, positive unconditional: 503, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1261, Positive cache size: 1261, Positive conditional cache size: 0, Positive unconditional cache size: 1261, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 262373 - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 13 procedures, 74 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 133159.2ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 23.3ms, PartialOrderReductionTime: 132185.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.9ms SsaConstructionTime, 95.4ms SatisfiabilityAnalysisTime, 383.0ms InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 784 SizeOfPredicates, 0 NumberOfNonLiveVariables, 324 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 2 InterpolantComputations, 0 PerfectInterpolantSequences, 20/22 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...