/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 10:19:08,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 10:19:08,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 10:19:08,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 10:19:08,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 10:19:08,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 10:19:08,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 10:19:08,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 10:19:08,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 10:19:08,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 10:19:08,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 10:19:08,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 10:19:08,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 10:19:08,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 10:19:08,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 10:19:08,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 10:19:08,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 10:19:08,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 10:19:08,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 10:19:08,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 10:19:08,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 10:19:08,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 10:19:08,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 10:19:08,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 10:19:08,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 10:19:08,483 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 10:19:08,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 10:19:08,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 10:19:08,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 10:19:08,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 10:19:08,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 10:19:08,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 10:19:08,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 10:19:08,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 10:19:08,514 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 10:19:08,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 10:19:08,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 10:19:08,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 10:19:08,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:19:08,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 10:19:08,517 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 10:19:08,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 10:19:08,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 10:19:08,518 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 10:19:08,519 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 10:19:08,519 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 10:19:08,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 10:19:08,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 10:19:08,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 10:19:08,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 10:19:08,707 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 10:19:08,708 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 10:19:08,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-02-19 10:19:08,710 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-02-19 10:19:08,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 10:19:08,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 10:19:08,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 10:19:08,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 10:19:08,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 10:19:08,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,744 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 10:19:08,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 10:19:08,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 10:19:08,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 10:19:08,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 10:19:08,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 10:19:08,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 10:19:08,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 10:19:08,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 10:19:08,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/1) ... [2022-02-19 10:19:08,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:19:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:08,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 10:19:08,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 10:19:08,833 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 10:19:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 10:19:08,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 10:19:08,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 10:19:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 10:19:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 10:19:08,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 10:19:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 10:19:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 10:19:08,835 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 10:19:08,874 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 10:19:08,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 10:19:08,971 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 10:19:08,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 10:19:08,977 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 10:19:08,978 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:19:08 BoogieIcfgContainer [2022-02-19 10:19:08,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 10:19:08,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 10:19:08,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 10:19:08,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 10:19:08,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:19:08" (1/2) ... [2022-02-19 10:19:08,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bcd76e and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:19:08, skipping insertion in model container [2022-02-19 10:19:08,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:19:08" (2/2) ... [2022-02-19 10:19:08,995 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-02-19 10:19:09,000 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 10:19:09,000 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 10:19:09,000 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 10:19:09,000 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 10:19:09,017 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,018 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,020 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,021 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,021 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,021 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,024 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,024 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,024 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,025 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,026 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,026 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,026 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,027 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,029 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,029 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,030 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,030 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,030 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,030 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,041 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,043 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 10:19:09,044 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 10:19:09,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 10:19:09,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:09,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 10:19:09,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 10:19:09,143 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 10:19:09,150 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 10:19:09,150 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 10:19:09,831 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 850 transitions and produced 676 states. [2022-02-19 10:19:09,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:19:09,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:09,837 INFO L85 PathProgramCache]: Analyzing trace with hash -641517945, now seen corresponding path program 1 times [2022-02-19 10:19:09,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:09,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871777422] [2022-02-19 10:19:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:09,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 2023 proven. 2383 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-02-19 10:19:11,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:11,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871777422] [2022-02-19 10:19:11,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871777422] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:19:11,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18909630] [2022-02-19 10:19:11,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:11,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:11,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:11,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:19:11,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 10:19:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:11,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 63 conjunts are in the unsatisfiable core [2022-02-19 10:19:11,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:19:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 1488 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:14,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:19:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 2023 proven. 2383 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-02-19 10:19:15,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18909630] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:19:15,026 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:19:15,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 64, 33] total 110 [2022-02-19 10:19:15,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912088790] [2022-02-19 10:19:15,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:19:15,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-19 10:19:15,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:19:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-19 10:19:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2615, Invalid=9375, Unknown=0, NotChecked=0, Total=11990 [2022-02-19 10:19:15,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:15,057 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:19:15,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 5.463636363636364) internal successors, (601), 110 states have internal predecessors, (601), 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) [2022-02-19 10:19:15,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:19,623 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 860 transitions and produced 770 states. [2022-02-19 10:19:19,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:19,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 10:19:19,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 10:19:19,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:19:19,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash 846936397, now seen corresponding path program 2 times [2022-02-19 10:19:19,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:19,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582582291] [2022-02-19 10:19:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2074 proven. 3678 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:21,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:21,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582582291] [2022-02-19 10:19:21,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582582291] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:19:21,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601700023] [2022-02-19 10:19:21,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 10:19:21,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:21,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:21,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:19:21,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 10:19:21,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 10:19:21,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:19:21,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 74 conjunts are in the unsatisfiable core [2022-02-19 10:19:21,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:19:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2069 proven. 3674 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-19 10:19:25,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:19:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2069 proven. 3674 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-19 10:19:25,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601700023] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:19:25,868 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:19:25,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 75, 75] total 143 [2022-02-19 10:19:25,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982650677] [2022-02-19 10:19:25,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:19:25,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-02-19 10:19:25,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:19:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-02-19 10:19:25,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3639, Invalid=16667, Unknown=0, NotChecked=0, Total=20306 [2022-02-19 10:19:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:25,877 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:19:25,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 4.314685314685315) internal successors, (617), 143 states have internal predecessors, (617), 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) [2022-02-19 10:19:25,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:25,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:26,312 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 761 transitions and produced 729 states. [2022-02-19 10:19:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:19:26,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 10:19:26,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:26,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:19:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2086034575, now seen corresponding path program 3 times [2022-02-19 10:19:26,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:26,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103525240] [2022-02-19 10:19:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:28,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103525240] [2022-02-19 10:19:28,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103525240] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:19:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195502101] [2022-02-19 10:19:28,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 10:19:28,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:28,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:19:28,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 10:19:28,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 38 check-sat command(s) [2022-02-19 10:19:28,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:19:28,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 77 conjunts are in the unsatisfiable core [2022-02-19 10:19:28,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:19:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:32,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:19:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:32,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195502101] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:19:32,799 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:19:32,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 149 [2022-02-19 10:19:32,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304465409] [2022-02-19 10:19:32,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:19:32,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-02-19 10:19:32,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:19:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-02-19 10:19:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3952, Invalid=18100, Unknown=0, NotChecked=0, Total=22052 [2022-02-19 10:19:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:32,806 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:19:32,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 4.355704697986577) internal successors, (649), 149 states have internal predecessors, (649), 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) [2022-02-19 10:19:32,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:32,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:19:32,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:33,232 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 787 transitions and produced 755 states. [2022-02-19 10:19:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:19:33,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:19:33,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-19 10:19:33,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:33,448 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:19:33,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1183659705, now seen corresponding path program 4 times [2022-02-19 10:19:33,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:33,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747274280] [2022-02-19 10:19:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:19:42,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:42,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747274280] [2022-02-19 10:19:42,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747274280] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:19:42,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908167057] [2022-02-19 10:19:42,087 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 10:19:42,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:42,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:42,088 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:19:42,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 10:19:42,191 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 10:19:42,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:19:42,198 WARN L261 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 383 conjunts are in the unsatisfiable core [2022-02-19 10:19:42,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:19:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:19:43,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:19:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:19:44,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908167057] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:19:44,840 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:19:44,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [149, 149, 149] total 149 [2022-02-19 10:19:44,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779804926] [2022-02-19 10:19:44,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:19:44,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2022-02-19 10:19:44,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:19:44,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2022-02-19 10:19:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2022-02-19 10:19:44,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:44,844 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:19:44,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 150 states have (on average 2.32) internal successors, (348), 150 states have internal predecessors, (348), 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) [2022-02-19 10:19:44,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:44,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:19:44,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:19:44,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:19:50,926 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1162 transitions and produced 1130 states. [2022-02-19 10:19:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:19:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:19:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:19:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:19:50,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 10:19:51,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:51,156 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:19:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:19:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1623167931, now seen corresponding path program 5 times [2022-02-19 10:19:51,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:19:51,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909056911] [2022-02-19 10:19:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:19:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:19:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:19:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 6524 proven. 8956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:54,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:19:54,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909056911] [2022-02-19 10:19:54,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909056911] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:19:54,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279088879] [2022-02-19 10:19:54,261 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 10:19:54,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:19:54,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:19:54,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:19:54,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 10:19:54,457 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 68 check-sat command(s) [2022-02-19 10:19:54,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:19:54,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 108 conjunts are in the unsatisfiable core [2022-02-19 10:19:54,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:19:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 12936 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:19:59,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:20:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 6524 proven. 8956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:20:03,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279088879] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:20:03,257 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:20:03,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109, 109] total 261 [2022-02-19 10:20:03,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604225025] [2022-02-19 10:20:03,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:20:03,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 261 states [2022-02-19 10:20:03,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:20:03,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 261 interpolants. [2022-02-19 10:20:03,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12746, Invalid=55114, Unknown=0, NotChecked=0, Total=67860 [2022-02-19 10:20:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:20:03,275 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:20:03,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 261 states, 261 states have (on average 4.793103448275862) internal successors, (1251), 261 states have internal predecessors, (1251), 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) [2022-02-19 10:20:03,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:20:03,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:20:03,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:20:03,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:20:03,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:20:16,423 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1663 transitions and produced 1452 states. [2022-02-19 10:20:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:20:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:20:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:20:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:20:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:20:16,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-19 10:20:16,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:20:16,638 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:20:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:20:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash -645349843, now seen corresponding path program 6 times [2022-02-19 10:20:16,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:20:16,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491853402] [2022-02-19 10:20:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:20:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:20:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:20:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:20:39,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:20:39,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491853402] [2022-02-19 10:20:39,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491853402] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:20:39,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458194969] [2022-02-19 10:20:39,596 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 10:20:39,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:20:39,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:20:39,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:20:39,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 10:20:39,832 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2022-02-19 10:20:39,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:20:39,849 WARN L261 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 673 conjunts are in the unsatisfiable core [2022-02-19 10:20:39,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:20:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:20:41,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:20:43,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:20:43,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458194969] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:20:43,948 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:20:43,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 265, 265] total 265 [2022-02-19 10:20:43,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474168809] [2022-02-19 10:20:43,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:20:43,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-02-19 10:20:43,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:20:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-02-19 10:20:43,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=70491, Unknown=0, NotChecked=0, Total=71022 [2022-02-19 10:20:43,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:20:43,953 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:20:43,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 266 states have (on average 2.289473684210526) internal successors, (609), 266 states have internal predecessors, (609), 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) [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:20:43,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:21:01,827 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1738 transitions and produced 1678 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:21:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:21:01,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 10:21:02,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:21:02,044 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:21:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:21:02,045 INFO L85 PathProgramCache]: Analyzing trace with hash 315216363, now seen corresponding path program 7 times [2022-02-19 10:21:02,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:21:02,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288346834] [2022-02-19 10:21:02,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:21:02,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:21:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:21:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 15601 proven. 18555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:21:08,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:21:08,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288346834] [2022-02-19 10:21:08,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288346834] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:21:08,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995539592] [2022-02-19 10:21:08,953 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 10:21:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:21:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:21:08,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:21:08,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 10:21:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:21:09,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 166 conjunts are in the unsatisfiable core [2022-02-19 10:21:09,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:21:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 26885 proven. 7271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:21:16,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:21:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 15601 proven. 18555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:21:22,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995539592] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:21:22,635 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:21:22,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [167, 167, 167] total 348 [2022-02-19 10:21:22,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668067564] [2022-02-19 10:21:22,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:21:22,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 348 states [2022-02-19 10:21:22,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:21:22,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 348 interpolants. [2022-02-19 10:21:22,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22374, Invalid=98382, Unknown=0, NotChecked=0, Total=120756 [2022-02-19 10:21:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:21:22,647 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:21:22,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 348 states, 348 states have (on average 4.594827586206897) internal successors, (1599), 348 states have internal predecessors, (1599), 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) [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:21:22,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:21:22,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:21:44,272 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2243 transitions and produced 2004 states. [2022-02-19 10:21:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:21:44,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:21:44,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-19 10:21:44,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 10:21:44,488 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:21:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:21:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -445910303, now seen corresponding path program 8 times [2022-02-19 10:21:44,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:21:44,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497340879] [2022-02-19 10:21:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:21:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:21:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:22:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:22:18,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:22:18,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497340879] [2022-02-19 10:22:18,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497340879] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:22:18,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038900902] [2022-02-19 10:22:18,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 10:22:18,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:22:18,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:22:18,611 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:22:18,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 10:22:18,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 10:22:18,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:22:18,870 WARN L261 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 963 conjunts are in the unsatisfiable core [2022-02-19 10:22:18,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:22:20,592 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:22:20,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:22:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:22:22,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038900902] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:22:22,226 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:22:22,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [381, 381, 381] total 381 [2022-02-19 10:22:22,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458041252] [2022-02-19 10:22:22,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:22:22,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2022-02-19 10:22:22,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:22:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2022-02-19 10:22:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=763, Invalid=145543, Unknown=0, NotChecked=0, Total=146306 [2022-02-19 10:22:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:22:22,236 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:22:22,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.277486910994764) internal successors, (870), 382 states have internal predecessors, (870), 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) [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:22:22,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:22:52,111 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2318 transitions and produced 2230 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:22:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:22:52,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 10:22:52,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:22:52,336 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:22:52,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:22:52,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2076150173, now seen corresponding path program 9 times [2022-02-19 10:22:52,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:22:52,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438267839] [2022-02-19 10:22:52,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:22:52,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:22:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:23:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 29724 proven. 30677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:23:01,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:23:01,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438267839] [2022-02-19 10:23:01,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438267839] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:23:01,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375970145] [2022-02-19 10:23:01,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 10:23:01,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:23:01,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:23:01,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:23:01,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 10:23:01,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 126 check-sat command(s) [2022-02-19 10:23:01,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:23:01,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 224 conjunts are in the unsatisfiable core [2022-02-19 10:23:01,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:23:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 45880 proven. 14521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:23:10,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:23:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 29724 proven. 30677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:23:18,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375970145] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:23:18,419 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:23:18,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [225, 225, 225] total 435 [2022-02-19 10:23:18,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825294065] [2022-02-19 10:23:18,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:23:18,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 435 states [2022-02-19 10:23:18,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:23:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 435 interpolants. [2022-02-19 10:23:18,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35366, Invalid=153424, Unknown=0, NotChecked=0, Total=188790 [2022-02-19 10:23:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:23:18,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:23:18,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 435 states, 435 states have (on average 4.475862068965517) internal successors, (1947), 435 states have internal predecessors, (1947), 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) [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:23:18,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:24:01,969 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2823 transitions and produced 2556 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:24:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:24:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:24:01,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 10:24:02,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-19 10:24:02,191 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:24:02,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:24:02,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1843659259, now seen corresponding path program 10 times [2022-02-19 10:24:02,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:24:02,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46117978] [2022-02-19 10:24:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:24:02,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:24:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:25:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:25:13,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:25:13,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46117978] [2022-02-19 10:25:13,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46117978] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:25:13,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392844333] [2022-02-19 10:25:13,634 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 10:25:13,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:25:13,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:25:13,648 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:25:13,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 10:25:13,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 10:25:13,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:25:13,971 WARN L261 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 1253 conjunts are in the unsatisfiable core [2022-02-19 10:25:13,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:25:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:25:16,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:25:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:25:20,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392844333] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:25:20,659 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:25:20,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [497, 497, 497] total 497 [2022-02-19 10:25:20,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287491640] [2022-02-19 10:25:20,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:25:20,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 499 states [2022-02-19 10:25:20,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:25:20,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 499 interpolants. [2022-02-19 10:25:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=995, Invalid=247507, Unknown=0, NotChecked=0, Total=248502 [2022-02-19 10:25:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:25:20,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:25:20,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 499 states, 498 states have (on average 2.2710843373493974) internal successors, (1131), 498 states have internal predecessors, (1131), 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) [2022-02-19 10:25:20,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:25:20,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:25:20,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:25:20,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:25:20,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:26:32,253 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2898 transitions and produced 2782 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:26:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:26:32,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-19 10:26:32,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-19 10:26:32,455 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:26:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:26:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1259611325, now seen corresponding path program 11 times [2022-02-19 10:26:32,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:26:32,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243866342] [2022-02-19 10:26:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:26:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:26:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:26:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 48893 proven. 45322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:26:53,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:26:53,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243866342] [2022-02-19 10:26:53,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243866342] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:26:53,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505972277] [2022-02-19 10:26:53,407 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 10:26:53,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:26:53,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:26:53,408 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:26:53,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-19 10:26:54,355 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 155 check-sat command(s) [2022-02-19 10:26:54,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:26:54,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 282 conjunts are in the unsatisfiable core [2022-02-19 10:26:54,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:27:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 69921 proven. 24294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:27:15,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:27:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 48893 proven. 45322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:27:23,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505972277] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:27:23,601 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:27:23,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [283, 283, 283] total 522 [2022-02-19 10:27:23,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257573789] [2022-02-19 10:27:23,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:27:23,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 522 states [2022-02-19 10:27:23,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:27:23,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 522 interpolants. [2022-02-19 10:27:23,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51722, Invalid=220240, Unknown=0, NotChecked=0, Total=271962 [2022-02-19 10:27:23,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:27:23,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:27:23,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 522 states, 522 states have (on average 4.396551724137931) internal successors, (2295), 522 states have internal predecessors, (2295), 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) [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:27:23,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:27:23,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:27:23,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:28:36,012 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3403 transitions and produced 3108 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:28:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:28:36,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-02-19 10:28:36,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-19 10:28:36,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-19 10:28:36,227 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:28:36,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:28:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash -558573815, now seen corresponding path program 12 times [2022-02-19 10:28:36,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:28:36,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654900604] [2022-02-19 10:28:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:28:36,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:28:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:30:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 106337 backedges. 0 proven. 106331 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:30:14,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:30:14,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654900604] [2022-02-19 10:30:14,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654900604] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:30:14,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073980846] [2022-02-19 10:30:14,936 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 10:30:14,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:30:14,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:30:14,937 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:30:14,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-19 10:30:15,720 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 155 check-sat command(s) [2022-02-19 10:30:15,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:30:15,777 WARN L261 TraceCheckSpWp]: Trace formula consists of 2489 conjuncts, 1543 conjunts are in the unsatisfiable core [2022-02-19 10:30:15,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:30:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 106337 backedges. 0 proven. 106331 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:30:20,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:30:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 106337 backedges. 0 proven. 106331 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:30:25,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073980846] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:30:25,117 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:30:25,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [613, 613, 613] total 613 [2022-02-19 10:30:25,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669958767] [2022-02-19 10:30:25,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:30:25,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 615 states [2022-02-19 10:30:25,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:30:25,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 615 interpolants. [2022-02-19 10:30:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1227, Invalid=376383, Unknown=0, NotChecked=0, Total=377610 [2022-02-19 10:30:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:30:25,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:30:25,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 615 states, 614 states have (on average 2.267100977198697) internal successors, (1392), 614 states have internal predecessors, (1392), 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) [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 480 states. [2022-02-19 10:30:25,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:31:47,725 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3478 transitions and produced 3334 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:31:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:31:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:31:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:31:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:31:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-02-19 10:31:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 615 states. [2022-02-19 10:31:47,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-19 10:31:47,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-19 10:31:47,939 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 10:31:47,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:31:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1016880885, now seen corresponding path program 13 times [2022-02-19 10:31:47,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:31:47,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694479044] [2022-02-19 10:31:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:31:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:31:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:32:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 135598 backedges. 73108 proven. 62490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:32:09,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:32:09,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694479044] [2022-02-19 10:32:09,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694479044] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:32:09,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925346239] [2022-02-19 10:32:09,330 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 10:32:09,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:32:09,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:32:09,331 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:32:09,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-19 10:32:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:32:09,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 340 conjunts are in the unsatisfiable core [2022-02-19 10:32:09,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:32:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 135598 backedges. 99008 proven. 36590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:32:30,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:32:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 135598 backedges. 73108 proven. 62490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:32:38,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925346239] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:32:38,714 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:32:38,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [341, 341, 341] total 609 [2022-02-19 10:32:38,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977340421] [2022-02-19 10:32:38,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:32:38,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 609 states [2022-02-19 10:32:38,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:32:38,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 609 interpolants. [2022-02-19 10:32:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71442, Invalid=298830, Unknown=0, NotChecked=0, Total=370272 [2022-02-19 10:32:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:32:38,740 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:32:38,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 609 states, 609 states have (on average 4.3399014778325125) internal successors, (2643), 609 states have internal predecessors, (2643), 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) [2022-02-19 10:32:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 10:32:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 10:32:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 10:32:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 10:32:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 499 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 480 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 615 states. [2022-02-19 10:32:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 10:33:23,575 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 10:33:23,589 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 10:33:23,589 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 10:33:23,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-19 10:33:23,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:33:23,812 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-19 10:33:23,814 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 10:33:23,814 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 10:33:23,815 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 10:33:23,818 INFO L732 BasicCegarLoop]: Path program histogram: [13] [2022-02-19 10:33:23,822 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 10:33:23,822 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 10:33:23,824 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:33:23 BasicIcfg [2022-02-19 10:33:23,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 10:33:23,824 INFO L158 Benchmark]: Toolchain (without parser) took 855097.96ms. Allocated memory was 232.8MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 195.0MB in the beginning and 487.2MB in the end (delta: -292.1MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-02-19 10:33:23,825 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 232.8MB. Free memory is still 196.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 10:33:23,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.10ms. Allocated memory is still 232.8MB. Free memory was 195.0MB in the beginning and 193.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 10:33:23,825 INFO L158 Benchmark]: Boogie Preprocessor took 10.29ms. Allocated memory is still 232.8MB. Free memory was 193.5MB in the beginning and 192.6MB in the end (delta: 900.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 10:33:23,825 INFO L158 Benchmark]: RCFGBuilder took 221.47ms. Allocated memory is still 232.8MB. Free memory was 192.4MB in the beginning and 184.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 10:33:23,826 INFO L158 Benchmark]: TraceAbstraction took 854844.44ms. Allocated memory was 232.8MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 183.5MB in the beginning and 487.2MB in the end (delta: -303.7MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-02-19 10:33:23,827 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 0.13ms. Allocated memory is still 232.8MB. Free memory is still 196.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.10ms. Allocated memory is still 232.8MB. Free memory was 195.0MB in the beginning and 193.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.29ms. Allocated memory is still 232.8MB. Free memory was 193.5MB in the beginning and 192.6MB in the end (delta: 900.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 221.47ms. Allocated memory is still 232.8MB. Free memory was 192.4MB in the beginning and 184.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 854844.44ms. Allocated memory was 232.8MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 183.5MB in the beginning and 487.2MB in the end (delta: -303.7MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 854.7s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 409.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4030, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 15.7s SatisfiabilityAnalysisTime, 424.9s InterpolantComputationTime, 21210 NumberOfCodeBlocks, 21210 NumberOfCodeBlocksAsserted, 632 NumberOfCheckSat, 31776 ConstructedInterpolants, 0 QuantifiedInterpolants, 174206 SizeOfPredicates, 32 NumberOfNonLiveVariables, 18951 ConjunctsInSsa, 6149 ConjunctsInUnsatCore, 39 InterpolantComputations, 0 PerfectInterpolantSequences, 620654/1800300 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown