/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788
[2021-06-02 00:18:41,919 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2021-06-02 00:18:41,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-06-02 00:18:41,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-02 00:18:41,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values
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[2021-06-02 00:18:42,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-06-02 00:18:42,004 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.epf
[2021-06-02 00:18:42,024 INFO L113 SettingsManager]: Loading preferences was successful
[2021-06-02 00:18:42,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-02 00:18:42,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-02 00:18:42,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-02 00:18:42,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-02 00:18:42,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-06-02 00:18:42,026 INFO L138 SettingsManager]: * Use SBE=true
[2021-06-02 00:18:42,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-02 00:18:42,026 INFO L138 SettingsManager]: * sizeof long=4
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * sizeof long double=12
[2021-06-02 00:18:42,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-06-02 00:18:42,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-06-02 00:18:42,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-02 00:18:42,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-06-02 00:18:42,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-02 00:18:42,030 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET
[2021-06-02 00:18:42,030 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-02 00:18:42,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-02 00:18:42,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-02 00:18:42,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-02 00:18:42,320 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-06-02 00:18:42,322 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2021-06-02 00:18:42,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl
[2021-06-02 00:18:42,323 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl'
[2021-06-02 00:18:42,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-02 00:18:42,357 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-06-02 00:18:42,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-02 00:18:42,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-02 00:18:42,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-02 00:18:42,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-02 00:18:42,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-02 00:18:42,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-02 00:18:42,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-06-02 00:18:42,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/1) ...
[2021-06-02 00:18:42,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-02 00:18:42,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-02 00:18:42,399 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-06-02 00:18:42,399 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-06-02 00:18:42,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (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
[2021-06-02 00:18:42,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2021-06-02 00:18:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-06-02 00:18:42,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-06-02 00:18:42,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2021-06-02 00:18:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-06-02 00:18:42,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-06-02 00:18:42,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-06-02 00:18:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-02 00:18:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-02 00:18:42,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2021-06-02 00:18:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2021-06-02 00:18:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2021-06-02 00:18:42,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration
[2021-06-02 00:18:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2021-06-02 00:18:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2021-06-02 00:18:42,462 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-02 00:18:42,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-02 00:18:42,644 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-06-02 00:18:42,645 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 12:18:42 BoogieIcfgContainer
[2021-06-02 00:18:42,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-02 00:18:42,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-02 00:18:42,647 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-06-02 00:18:42,649 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-06-02 00:18:42,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 12:18:42" (1/2) ...
[2021-06-02 00:18:42,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560536c7 and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 12:18:42, skipping insertion in model container
[2021-06-02 00:18:42,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 12:18:42" (2/2) ...
[2021-06-02 00:18:42,651 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl
[2021-06-02 00:18:42,656 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-02 00:18:42,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-02 00:18:42,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-02 00:18:42,657 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-02 00:18:42,705 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2021-06-02 00:18:42,744 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-06-02 00:18:42,847 INFO L378 AbstractCegarLoop]: Interprodecural is true
[2021-06-02 00:18:42,847 INFO L379 AbstractCegarLoop]: Hoare is false
[2021-06-02 00:18:42,847 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-02 00:18:42,847 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-02 00:18:42,847 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-02 00:18:42,848 INFO L383 AbstractCegarLoop]: Difference is false
[2021-06-02 00:18:42,848 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-02 00:18:42,848 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-02 00:18:43,626 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-02 00:18:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-02 00:18:43,635 INFO L82 PathProgramCache]: Analyzing trace with hash -671307486, now seen corresponding path program 1 times
[2021-06-02 00:18:43,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-02 00:18:43,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909564953]
[2021-06-02 00:18:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-02 00:18:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-02 00:18:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-02 00:18:43,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-02 00:18:43,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909564953]
[2021-06-02 00:18:43,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909564953] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-02 00:18:43,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-02 00:18:43,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-06-02 00:18:43,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808380511]
[2021-06-02 00:18:43,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-06-02 00:18:43,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-02 00:18:43,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-06-02 00:18:43,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-02 00:18:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-06-02 00:18:43,815 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-02 00:18:43,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-02 00:18:43,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2021-06-02 00:18:43,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-06-02 00:18:43,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-02 00:18:43,981 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-02 00:18:43,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-02 00:18:43,982 INFO L82 PathProgramCache]: Analyzing trace with hash -250528579, now seen corresponding path program 1 times
[2021-06-02 00:18:43,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-02 00:18:43,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069923379]
[2021-06-02 00:18:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-02 00:18:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-02 00:18:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-02 00:18:44,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-02 00:18:44,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069923379]
[2021-06-02 00:18:44,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069923379] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-02 00:18:44,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023728057]
[2021-06-02 00:18:44,069 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
[2021-06-02 00:18:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-02 00:18:44,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-06-02 00:18:44,127 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-02 00:18:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-02 00:18:44,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023728057] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-02 00:18:44,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-02 00:18:44,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5
[2021-06-02 00:18:44,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172983442]
[2021-06-02 00:18:44,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-02 00:18:44,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-02 00:18:44,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-02 00:18:44,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-06-02 00:18:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-06-02 00:18:44,211 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-06-02 00:18:44,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-02 00:18:44,211 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2021-06-02 00:18:44,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2021-06-02 00:18:44,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-06-02 00:18:44,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-02 00:18:44,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-02 00:18:44,584 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-02 00:18:44,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-02 00:18:44,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1410383358, now seen corresponding path program 1 times
[2021-06-02 00:18:44,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-02 00:18:44,585 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030471762]
[2021-06-02 00:18:44,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-02 00:18:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-02 00:18:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-02 00:18:44,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-02 00:18:44,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030471762]
[2021-06-02 00:18:44,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030471762] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-02 00:18:44,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742492984]
[2021-06-02 00:18:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-02 00:18:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-02 00:18:44,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core
[2021-06-02 00:18:44,916 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-02 00:18:45,712 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception
[2021-06-02 00:18:45,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-02 00:18:45,925 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:212)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:408)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:312)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:328)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:231)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:198)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:182)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:149)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminate(DualJunctionDer.java:127)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:869)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:835)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:753)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:384)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:316)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.convert(QuantifierPusher.java:227)
at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131)
at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115)
at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106)
at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:144)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:166)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$LiveVariablesPostprocessorForward.postprocess(TraceCheckSpWp.java:539)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:163)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:84)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:74)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:643)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:154)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: Toolchain (without parser) took 3571.41 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 235.0 MB in the beginning and 251.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 163.4 MB. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 236.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.90 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 233.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: Boogie Preprocessor took 15.23 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.5 MB in the end (delta: 979.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: RCFGBuilder took 246.02 ms. Allocated memory is still 255.9 MB. Free memory was 232.3 MB in the beginning and 217.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,929 INFO L168 Benchmark]: TraceAbstraction took 3281.44 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 217.5 MB in the beginning and 251.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 146.6 MB. Max. memory is 16.0 GB.
[2021-06-02 00:18:45,930 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 236.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 22.90 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 233.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Preprocessor took 15.23 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.5 MB in the end (delta: 979.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* RCFGBuilder took 246.02 ms. Allocated memory is still 255.9 MB. Free memory was 232.3 MB in the beginning and 217.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 3281.44 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 217.5 MB in the beginning and 251.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 146.6 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...