/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 03:52:44,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 03:52:44,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 03:52:44,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 03:52:44,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 03:52:44,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 03:52:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 03:52:44,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 03:52:44,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 03:52:44,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 03:52:44,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 03:52:44,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 03:52:44,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 03:52:44,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 03:52:44,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 03:52:44,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 03:52:44,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 03:52:44,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 03:52:44,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 03:52:44,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 03:52:44,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 03:52:44,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 03:52:44,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 03:52:44,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 03:52:44,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 03:52:44,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 03:52:44,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 03:52:44,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 03:52:44,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 03:52:44,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 03:52:44,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 03:52:44,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 03:52:44,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 03:52:44,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 03:52:44,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 03:52:44,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 03:52:44,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 03:52:44,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 03:52:44,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 03:52:44,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 03:52:44,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 03:52:44,515 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-FA-NoLbe.epf [2022-01-18 03:52:44,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 03:52:44,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 03:52:44,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 03:52:44,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 03:52:44,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 03:52:44,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 03:52:44,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 03:52:44,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 03:52:44,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 03:52:44,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 03:52:44,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 03:52:44,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 03:52:44,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 03:52:44,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 03:52:44,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 03:52:44,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 03:52:44,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 03:52:44,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 03:52:44,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 03:52:44,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:52:44,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 03:52:44,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 03:52:44,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 03:52:44,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 03:52:44,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 03:52:44,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 03:52:44,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 03:52:44,752 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 03:52:44,761 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 03:52:44,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl [2022-01-18 03:52:44,763 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/multiple_fork_same_id.bpl' [2022-01-18 03:52:44,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 03:52:44,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 03:52:44,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 03:52:44,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 03:52:44,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 03:52:44,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,797 INFO L137 Inliner]: procedures = 2, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 03:52:44,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 03:52:44,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 03:52:44,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 03:52:44,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 03:52:44,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 03:52:44,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 03:52:44,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 03:52:44,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 03:52:44,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/1) ... [2022-01-18 03:52:44,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:52:44,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:52:44,834 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) [2022-01-18 03:52:44,853 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 [2022-01-18 03:52:44,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure increment given in one single declaration [2022-01-18 03:52:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2022-01-18 03:52:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2022-01-18 03:52:44,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 03:52:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 03:52:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 03:52:44,862 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 03:52:44,890 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 03:52:44,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 03:52:44,946 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 03:52:44,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 03:52:44,952 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 03:52:44,954 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:52:44 BoogieIcfgContainer [2022-01-18 03:52:44,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 03:52:44,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 03:52:44,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 03:52:44,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 03:52:44,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:52:44" (1/2) ... [2022-01-18 03:52:44,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eacff86 and model type multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:52:44, skipping insertion in model container [2022-01-18 03:52:44,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:52:44" (2/2) ... [2022-01-18 03:52:44,961 INFO L111 eAbstractionObserver]: Analyzing ICFG multiple_fork_same_id.bpl [2022-01-18 03:52:44,972 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 03:52:44,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 03:52:44,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 03:52:44,973 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 03:52:44,995 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:44,995 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:44,998 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:44,999 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,000 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,000 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,000 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,000 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,001 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,001 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,003 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,003 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,014 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,016 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,016 WARN L322 ript$VariableManager]: TermVariabe incrementThread1of1ForFork2_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:52:45,018 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 03:52:45,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 03:52:45,067 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=FINITE_AUTOMATA, 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 [2022-01-18 03:52:45,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 03:52:45,075 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 18 transitions, 60 flow [2022-01-18 03:52:45,118 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 148 states, 142 states have (on average 2.3450704225352115) internal successors, (333), 147 states have internal predecessors, (333), 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) [2022-01-18 03:52:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 142 states have (on average 2.3450704225352115) internal successors, (333), 147 states have internal predecessors, (333), 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) [2022-01-18 03:52:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-18 03:52:45,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:52:45,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-18 03:52:45,125 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 03:52:45,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:52:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1187485940, now seen corresponding path program 1 times [2022-01-18 03:52:45,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:52:45,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396592736] [2022-01-18 03:52:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:52:45,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:52:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:52:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:52:45,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:52:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396592736] [2022-01-18 03:52:45,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396592736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:52:45,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:52:45,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 03:52:45,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914579691] [2022-01-18 03:52:45,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:52:45,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:52:45,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:52:45,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:52:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:52:45,346 INFO L87 Difference]: Start difference. First operand has 148 states, 142 states have (on average 2.3450704225352115) internal successors, (333), 147 states have internal predecessors, (333), 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) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-18 03:52:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:52:45,431 INFO L93 Difference]: Finished difference Result 139 states and 312 transitions. [2022-01-18 03:52:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 03:52:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2022-01-18 03:52:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:52:45,441 INFO L225 Difference]: With dead ends: 139 [2022-01-18 03:52:45,441 INFO L226 Difference]: Without dead ends: 76 [2022-01-18 03:52:45,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 03:52:45,449 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 03:52:45,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 34 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 03:52:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-18 03:52:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-01-18 03:52:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 2.22972972972973) internal successors, (165), 75 states have internal predecessors, (165), 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) [2022-01-18 03:52:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 165 transitions. [2022-01-18 03:52:45,499 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 165 transitions. Word has length 7 [2022-01-18 03:52:45,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:52:45,499 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 165 transitions. [2022-01-18 03:52:45,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-01-18 03:52:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 165 transitions. [2022-01-18 03:52:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-18 03:52:45,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:52:45,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-18 03:52:45,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 03:52:45,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 03:52:45,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:52:45,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1047289463, now seen corresponding path program 1 times [2022-01-18 03:52:45,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:52:45,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436799430] [2022-01-18 03:52:45,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:52:45,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:52:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:52:45,507 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 03:52:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:52:45,520 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 03:52:45,520 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 03:52:45,521 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-01-18 03:52:45,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 03:52:45,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 03:52:45,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 03:52:45,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 03:52:45,525 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 03:52:45,531 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 03:52:45,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 03:52:45,538 INFO L202 PluginConnector]: Adding new model multiple_fork_same_id.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:52:45 BasicIcfg [2022-01-18 03:52:45,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 03:52:45,539 INFO L158 Benchmark]: Toolchain (without parser) took 758.33ms. Allocated memory is still 392.2MB. Free memory was 354.9MB in the beginning and 362.6MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:52:45,540 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 392.2MB. Free memory was 355.9MB in the beginning and 355.8MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:52:45,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.86ms. Allocated memory is still 392.2MB. Free memory was 354.8MB in the beginning and 353.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:52:45,540 INFO L158 Benchmark]: Boogie Preprocessor took 8.12ms. Allocated memory is still 392.2MB. Free memory was 353.4MB in the beginning and 352.5MB in the end (delta: 910.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:52:45,541 INFO L158 Benchmark]: RCFGBuilder took 145.87ms. Allocated memory is still 392.2MB. Free memory was 352.5MB in the beginning and 344.6MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 03:52:45,541 INFO L158 Benchmark]: TraceAbstraction took 583.25ms. Allocated memory is still 392.2MB. Free memory was 344.1MB in the beginning and 362.6MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:52:45,542 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 0.11ms. Allocated memory is still 392.2MB. Free memory was 355.9MB in the beginning and 355.8MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 17.86ms. Allocated memory is still 392.2MB. Free memory was 354.8MB in the beginning and 353.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 8.12ms. Allocated memory is still 392.2MB. Free memory was 353.4MB in the beginning and 352.5MB in the end (delta: 910.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 145.87ms. Allocated memory is still 392.2MB. Free memory was 352.5MB in the beginning and 344.6MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 583.25ms. Allocated memory is still 392.2MB. Free memory was 344.1MB in the beginning and 362.6MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L19] FORK 0 fork 42 increment(7); VAL [n=7] [L20] FORK 0 fork 42 increment(23); VAL [n=7] [L34] 2 res := n + 1; VAL [n=7, res=24] [L21] FORK 0 fork 42 increment(39); VAL [n=39, res=24] [L24] JOIN 2 join 42 assign x; VAL [n=39, res=24, x=24] [L28] 0 assert x == 8 || x == 40; VAL [n=39, res=24, x=24] - UnprovableResult [Line: 13]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2022-01-18 03:52:45,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...