/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-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 04:08:31,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 04:08:31,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 04:08:31,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 04:08:31,916 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-Random7777.epf [2021-06-07 04:08:31,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 04:08:31,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 04:08:31,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 04:08:31,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 04:08:31,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 04:08:31,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 04:08:31,949 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 04:08:31,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 04:08:31,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 04:08:31,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 04:08:31,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 04:08:31,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 04:08:31,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 04:08:31,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 04:08:31,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 04:08:31,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 04:08:31,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 04:08:31,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 04:08:31,952 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 04:08:31,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 04:08:31,954 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 04:08:32,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 04:08:32,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 04:08:32,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 04:08:32,284 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 04:08:32,285 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 04:08:32,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl [2021-06-07 04:08:32,286 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring.wvr.bpl' [2021-06-07 04:08:32,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 04:08:32,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 04:08:32,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 04:08:32,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 04:08:32,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 04:08:32,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 04:08:32,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 04:08:32,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 04:08:32,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 04:08:32,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/1) ... [2021-06-07 04:08:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 04:08:32,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 04:08:32,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 04:08:32,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 04:08:32,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (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 [2021-06-07 04:08:32,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 04:08:32,445 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 04:08:32,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 04:08:32,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 04:08:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 04:08:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 04:08:32,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 04:08:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 04:08:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 04:08:32,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 04:08:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 04:08:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 04:08:32,447 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 04:08:32,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 04:08:32,721 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 04:08:32,723 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:08:32 BoogieIcfgContainer [2021-06-07 04:08:32,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 04:08:32,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 04:08:32,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 04:08:32,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 04:08:32,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:08:32" (1/2) ... [2021-06-07 04:08:32,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7bf3c3 and model type ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:08:32, skipping insertion in model container [2021-06-07 04:08:32,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:08:32" (2/2) ... [2021-06-07 04:08:32,728 INFO L111 eAbstractionObserver]: Analyzing ICFG ring.wvr.bpl [2021-06-07 04:08:32,732 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 04:08:32,732 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 04:08:32,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 04:08:32,733 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 04:08:32,780 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 04:08:32,814 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-06-07 04:08:32,852 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 04:08:32,852 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 04:08:32,852 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 04:08:32,852 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 04:08:32,852 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 04:08:32,853 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 04:08:32,853 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 04:08:32,853 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 04:08:32,994 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1954325241, now seen corresponding path program 1 times [2021-06-07 04:08:33,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:33,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139972167] [2021-06-07 04:08:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-07 04:08:33,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:33,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139972167] [2021-06-07 04:08:33,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139972167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:33,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:08:33,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 04:08:33,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870145025] [2021-06-07 04:08:33,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 04:08:33,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 04:08:33,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 04:08:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,137 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:33,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-06-07 04:08:33,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 04:08:33,176 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:33,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:33,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2061324021, now seen corresponding path program 2 times [2021-06-07 04:08:33,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:33,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960909526] [2021-06-07 04:08:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-07 04:08:33,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:33,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960909526] [2021-06-07 04:08:33,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960909526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:33,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 04:08:33,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 04:08:33,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777919605] [2021-06-07 04:08:33,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 04:08:33,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:33,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 04:08:33,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 04:08:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:33,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-06-07 04:08:33,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-07 04:08:33,258 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:33,258 INFO L82 PathProgramCache]: Analyzing trace with hash 747897207, now seen corresponding path program 1 times [2021-06-07 04:08:33,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:33,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852541517] [2021-06-07 04:08:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:33,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:33,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852541517] [2021-06-07 04:08:33,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852541517] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:33,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258289372] [2021-06-07 04:08:33,434 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 [2021-06-07 04:08:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:33,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 04:08:33,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-07 04:08:33,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258289372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:33,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 04:08:33,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2021-06-07 04:08:33,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169742803] [2021-06-07 04:08:33,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 04:08:33,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:33,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 04:08:33,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-06-07 04:08:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,748 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:33,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-06-07 04:08:33,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:34,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:34,013 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:34,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1231704135, now seen corresponding path program 2 times [2021-06-07 04:08:34,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:34,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864598849] [2021-06-07 04:08:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-06-07 04:08:34,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:34,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864598849] [2021-06-07 04:08:34,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864598849] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:34,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818132481] [2021-06-07 04:08:34,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:34,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 04:08:34,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:34,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 04:08:34,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-07 04:08:34,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818132481] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:34,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:34,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3] total 10 [2021-06-07 04:08:34,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708337958] [2021-06-07 04:08:34,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-07 04:08:34,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:34,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-07 04:08:34,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-06-07 04:08:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:34,374 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:34,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 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) [2021-06-07 04:08:34,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:34,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:34,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:34,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:34,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:34,873 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:34,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:34,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1458802016, now seen corresponding path program 3 times [2021-06-07 04:08:34,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:34,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731596836] [2021-06-07 04:08:34,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-07 04:08:34,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:34,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731596836] [2021-06-07 04:08:34,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731596836] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:34,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297143454] [2021-06-07 04:08:34,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:34,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-07 04:08:34,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:34,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 04:08:34,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-07 04:08:35,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297143454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 04:08:35,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 04:08:35,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-07 04:08:35,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029136975] [2021-06-07 04:08:35,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 04:08:35,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:35,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 04:08:35,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-07 04:08:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:35,088 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:35,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-07 04:08:35,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:35,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:35,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:35,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:35,329 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:35,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash -449329026, now seen corresponding path program 4 times [2021-06-07 04:08:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:35,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548269712] [2021-06-07 04:08:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-07 04:08:35,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:35,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548269712] [2021-06-07 04:08:35,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548269712] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:35,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858827191] [2021-06-07 04:08:35,680 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:35,738 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 04:08:35,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:35,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-07 04:08:35,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:35,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-07 04:08:35,886 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:08:35,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:08:35,891 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 04:08:35,892 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-06-07 04:08:35,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-07 04:08:35,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:08:35,929 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:08:35,930 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 04:08:35,930 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 04:08:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-07 04:08:35,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858827191] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:35,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:35,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 14 [2021-06-07 04:08:35,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7279250] [2021-06-07 04:08:35,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-07 04:08:35,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:35,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-07 04:08:35,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-07 04:08:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:35,995 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:35,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.466666666666667) internal successors, (67), 14 states have internal predecessors, (67), 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) [2021-06-07 04:08:35,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:35,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:35,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:35,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:35,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:36,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-07 04:08:36,569 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 04:08:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 04:08:36,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1124381462, now seen corresponding path program 5 times [2021-06-07 04:08:36,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 04:08:36,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145444270] [2021-06-07 04:08:36,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 04:08:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 04:08:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 04:08:37,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 04:08:37,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145444270] [2021-06-07 04:08:37,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145444270] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:37,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588713209] [2021-06-07 04:08:37,447 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:37,541 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-07 04:08:37,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 04:08:37,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-07 04:08:37,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 04:08:38,123 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 04:08:38,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2021-06-07 04:08:38,126 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,141 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:08:38,143 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:58 [2021-06-07 04:08:38,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:08:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 04:08:38,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 04:08:38,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-06-07 04:08:38,305 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:08:38,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,319 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:37 [2021-06-07 04:08:38,537 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 04:08:38,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 26 [2021-06-07 04:08:38,539 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,546 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 04:08:38,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 04:08:38,546 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:17 [2021-06-07 04:08:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 04:08:38,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588713209] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 04:08:38,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 04:08:38,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 39 [2021-06-07 04:08:38,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909673479] [2021-06-07 04:08:38,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-07 04:08:38,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 04:08:38,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-07 04:08:38,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2021-06-07 04:08:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:38,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 04:08:38,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.275) internal successors, (91), 39 states have internal predecessors, (91), 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) [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:38,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:38,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 04:08:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 04:08:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-07 04:08:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 04:08:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 04:08:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-07 04:08:41,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 04:08:41,247 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-07 04:08:41,250 INFO L202 PluginConnector]: Adding new model ring.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.06 04:08:41 BasicIcfg [2021-06-07 04:08:41,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-07 04:08:41,250 INFO L168 Benchmark]: Toolchain (without parser) took 8940.97 ms. Allocated memory was 377.5 MB in the beginning and 507.5 MB in the end (delta: 130.0 MB). Free memory was 356.7 MB in the beginning and 318.1 MB in the end (delta: 38.6 MB). Peak memory consumption was 171.6 MB. Max. memory is 16.0 GB. [2021-06-07 04:08:41,250 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 377.5 MB. Free memory was 358.0 MB in the beginning and 357.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 04:08:41,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.92 ms. Allocated memory is still 377.5 MB. Free memory was 356.6 MB in the beginning and 355.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 04:08:41,251 INFO L168 Benchmark]: Boogie Preprocessor took 29.47 ms. Allocated memory is still 377.5 MB. Free memory was 355.2 MB in the beginning and 354.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 04:08:41,251 INFO L168 Benchmark]: RCFGBuilder took 356.88 ms. Allocated memory is still 377.5 MB. Free memory was 354.0 MB in the beginning and 359.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-06-07 04:08:41,251 INFO L168 Benchmark]: TraceAbstraction took 8525.66 ms. Allocated memory was 377.5 MB in the beginning and 507.5 MB in the end (delta: 130.0 MB). Free memory was 359.7 MB in the beginning and 318.1 MB in the end (delta: 41.6 MB). Peak memory consumption was 171.5 MB. Max. memory is 16.0 GB. [2021-06-07 04:08:41,252 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 377.5 MB. Free memory was 358.0 MB in the beginning and 357.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.92 ms. Allocated memory is still 377.5 MB. Free memory was 356.6 MB in the beginning and 355.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.47 ms. Allocated memory is still 377.5 MB. Free memory was 355.2 MB in the beginning and 354.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 356.88 ms. Allocated memory is still 377.5 MB. Free memory was 354.0 MB in the beginning and 359.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8525.66 ms. Allocated memory was 377.5 MB in the beginning and 507.5 MB in the end (delta: 130.0 MB). Free memory was 359.7 MB in the beginning and 318.1 MB in the end (delta: 41.6 MB). Peak memory consumption was 171.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5269, positive: 4769, positive conditional: 4769, positive unconditional: 0, negative: 500, negative conditional: 500, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4867, positive: 4769, positive conditional: 4769, positive unconditional: 0, negative: 98, negative conditional: 98, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4867, positive: 4769, positive conditional: 0, positive unconditional: 4769, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 433, positive: 429, positive conditional: 0, positive unconditional: 429, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 433, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4867, positive: 4340, positive conditional: 0, positive unconditional: 4340, negative: 94, negative conditional: 0, negative unconditional: 94, unknown: 433, unknown conditional: 0, unknown unconditional: 433] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274, SemanticConditionEliminator.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 501, negative conditional: 227, negative unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 27, negative conditional: 23, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 67, negative conditional: 56, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 501, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 478, negative conditional: 204, negative unconditional: 274, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 456, Positive cache size: 429, Positive conditional cache size: 0, Positive unconditional cache size: 429, Negative cache size: 27, Negative conditional cache size: 23, Negative unconditional cache size: 4, Eliminated conditions: 274 ], Maximal queried relation: 7, Independence queries for same thread: 402 - PositiveResult [Line: 104]: 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 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8418.5ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 3318.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 89, 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: 75.2ms SsaConstructionTime, 345.7ms SatisfiabilityAnalysisTime, 3278.7ms InterpolantComputationTime, 644 NumberOfCodeBlocks, 644 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 632 ConstructedInterpolants, 1 QuantifiedInterpolants, 4204 SizeOfPredicates, 18 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 252/371 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...