./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d2ba6107 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/triangular-longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-d2ba610-m [2023-11-21 19:55:27,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:55:28,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-21 19:55:28,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:55:28,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:55:28,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:55:28,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:55:28,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:55:28,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:55:28,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:55:28,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:55:28,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:55:28,059 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 19:55:28,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:55:28,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:55:28,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:55:28,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:55:28,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:55:28,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:55:28,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:55:28,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:55:28,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:55:28,063 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:55:28,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:55:28,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:55:28,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:55:28,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:55:28,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:55:28,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:55:28,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:28,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:55:28,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:55:28,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:55:28,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 19:55:28,066 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 19:55:28,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:55:28,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:55:28,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 19:55:28,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:55:28,067 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 19:55:28,067 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 19:55:28,067 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2023-11-21 19:55:28,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:55:28,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:55:28,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:55:28,291 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:55:28,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:55:28,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/triangular-longer-1.i [2023-11-21 19:55:29,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:55:29,622 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:55:29,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i [2023-11-21 19:55:29,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6c563346f/6fe45dff58e14a25b4b28061df374749/FLAG2d343c75f [2023-11-21 19:55:29,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6c563346f/6fe45dff58e14a25b4b28061df374749 [2023-11-21 19:55:29,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:55:29,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:55:29,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:29,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:55:29,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:55:29,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:29" (1/1) ... [2023-11-21 19:55:29,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f2dd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:29, skipping insertion in model container [2023-11-21 19:55:29,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:55:29" (1/1) ... [2023-11-21 19:55:29,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:55:29,954 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i[30961,30974] [2023-11-21 19:55:29,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:29,969 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:55:30,002 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i[30961,30974] [2023-11-21 19:55:30,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:30,022 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:55:30,022 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:55:30,028 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:55:30,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30 WrapperNode [2023-11-21 19:55:30,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:30,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:30,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:55:30,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:55:30,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,079 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-21 19:55:30,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:30,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:55:30,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:55:30,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:55:30,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:55:30,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:55:30,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:55:30,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:55:30,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (1/1) ... [2023-11-21 19:55:30,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:30,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:30,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:55:30,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:55:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-21 19:55:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-21 19:55:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-21 19:55:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-21 19:55:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:55:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 19:55:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:55:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:55:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:55:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:55:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 19:55:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:55:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:55:30,212 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:55:30,342 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:55:30,344 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:55:30,490 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:55:30,582 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:55:30,583 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:55:30,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:55:30 BoogieIcfgContainer [2023-11-21 19:55:30,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:55:30,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:55:30,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:55:30,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:55:30,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:55:29" (1/3) ... [2023-11-21 19:55:30,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702802c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:55:30, skipping insertion in model container [2023-11-21 19:55:30,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:30" (2/3) ... [2023-11-21 19:55:30,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702802c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:55:30, skipping insertion in model container [2023-11-21 19:55:30,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:55:30" (3/3) ... [2023-11-21 19:55:30,596 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2023-11-21 19:55:30,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 19:55:30,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:55:30,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:55:30,614 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:55:30,646 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 19:55:30,686 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:55:30,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 19:55:30,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:30,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 19:55:30,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 19:55:30,722 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 19:55:30,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 19:55:30,737 INFO L357 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4476bcc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:55:30,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 19:55:30,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:30,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1170894247, now seen corresponding path program 1 times [2023-11-21 19:55:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:30,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826114345] [2023-11-21 19:55:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:31,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:31,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826114345] [2023-11-21 19:55:31,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826114345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:31,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:31,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:55:31,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426260806] [2023-11-21 19:55:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:31,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:55:31,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:31,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:55:31,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:55:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:31,319 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:31,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-21 19:55:31,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:31,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:55:31,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:31,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 348194946, now seen corresponding path program 1 times [2023-11-21 19:55:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389563181] [2023-11-21 19:55:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:31,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:31,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389563181] [2023-11-21 19:55:31,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389563181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:31,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:31,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:55:31,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104429184] [2023-11-21 19:55:31,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:31,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 19:55:31,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:31,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 19:55:31,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 19:55:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:31,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:31,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-21 19:55:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:31,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:31,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:31,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:55:31,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:31,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:31,869 INFO L85 PathProgramCache]: Analyzing trace with hash 332452637, now seen corresponding path program 2 times [2023-11-21 19:55:31,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:31,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960710622] [2023-11-21 19:55:31,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:32,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:32,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960710622] [2023-11-21 19:55:32,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960710622] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466881446] [2023-11-21 19:55:32,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 19:55:32,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:32,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:32,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:32,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:55:32,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 19:55:32,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:32,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 19:55:32,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:32,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466881446] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:32,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:32,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-21 19:55:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527704446] [2023-11-21 19:55:32,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:32,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-21 19:55:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-21 19:55:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-21 19:55:32,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:32,601 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:32,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 15 states have internal predecessors, (53), 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) [2023-11-21 19:55:32,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:32,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:32,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:32,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:55:32,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-21 19:55:33,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-21 19:55:33,029 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:33,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1687735954, now seen corresponding path program 3 times [2023-11-21 19:55:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:33,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688419788] [2023-11-21 19:55:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:33,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:33,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688419788] [2023-11-21 19:55:33,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688419788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:33,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022839578] [2023-11-21 19:55:33,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:55:33,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:33,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:33,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:33,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 19:55:33,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-21 19:55:33,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:33,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 19:55:33,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:33,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022839578] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:33,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 26 [2023-11-21 19:55:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635288330] [2023-11-21 19:55:33,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:33,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-21 19:55:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-21 19:55:33,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2023-11-21 19:55:33,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:33,750 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:33,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2962962962962963) internal successors, (89), 26 states have internal predecessors, (89), 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) [2023-11-21 19:55:33,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:33,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:33,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:55:33,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:55:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:55:34,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:34,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:34,399 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:34,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:34,399 INFO L85 PathProgramCache]: Analyzing trace with hash 413419344, now seen corresponding path program 4 times [2023-11-21 19:55:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:34,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120489238] [2023-11-21 19:55:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:34,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:34,655 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 302 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:34,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:34,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120489238] [2023-11-21 19:55:34,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120489238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:34,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831700644] [2023-11-21 19:55:34,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-21 19:55:34,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:34,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:34,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:34,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 19:55:34,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-21 19:55:34,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:34,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-21 19:55:34,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:34,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:55:34,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831700644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:34,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:55:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2023-11-21 19:55:34,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806543265] [2023-11-21 19:55:34,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:34,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 19:55:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:34,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 19:55:34,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-11-21 19:55:34,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:34,847 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 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) [2023-11-21 19:55:34,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:34,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:34,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 19:55:34,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 19:55:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:35,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:35,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:35,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:35,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1955069266, now seen corresponding path program 5 times [2023-11-21 19:55:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:35,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477852276] [2023-11-21 19:55:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:35,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477852276] [2023-11-21 19:55:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477852276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88217291] [2023-11-21 19:55:35,589 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-21 19:55:35,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:35,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:35,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:35,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 19:55:35,656 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 19:55:35,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:35,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 19:55:35,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:35,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:35,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:35,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88217291] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:35,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:35,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-21 19:55:35,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568159849] [2023-11-21 19:55:35,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:35,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 19:55:35,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:35,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 19:55:35,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-21 19:55:35,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:35,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:35,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 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) [2023-11-21 19:55:35,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:35,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:35,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:36,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 19:55:36,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:36,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:36,309 INFO L85 PathProgramCache]: Analyzing trace with hash 667198397, now seen corresponding path program 6 times [2023-11-21 19:55:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546395006] [2023-11-21 19:55:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:36,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:36,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546395006] [2023-11-21 19:55:36,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546395006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196657299] [2023-11-21 19:55:36,512 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-21 19:55:36,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:36,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:36,513 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:36,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 19:55:36,580 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-21 19:55:36,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:36,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 19:55:36,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:36,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:36,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196657299] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:36,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:36,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-11-21 19:55:36,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262652759] [2023-11-21 19:55:36,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:36,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-21 19:55:36,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:36,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-21 19:55:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2023-11-21 19:55:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:36,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:36,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 25 states have internal predecessors, (74), 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) [2023-11-21 19:55:36,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:37,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:55:37,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:37,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:37,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:37,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:37,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1808434764, now seen corresponding path program 7 times [2023-11-21 19:55:37,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:37,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371486719] [2023-11-21 19:55:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:37,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:55:38,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:38,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371486719] [2023-11-21 19:55:38,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371486719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:38,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722234690] [2023-11-21 19:55:38,337 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-21 19:55:38,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:38,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:38,339 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:38,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 19:55:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:38,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-21 19:55:38,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:55:38,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 19:55:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722234690] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:38,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:38,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-11-21 19:55:38,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194671166] [2023-11-21 19:55:38,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:38,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-21 19:55:38,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:38,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-21 19:55:38,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=1628, Unknown=0, NotChecked=0, Total=2070 [2023-11-21 19:55:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:38,834 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:38,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.9565217391304346) internal successors, (136), 45 states have internal predecessors, (136), 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) [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:55:38,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:40,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:55:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-21 19:55:40,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-21 19:55:40,275 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 19:55:40,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1217320692, now seen corresponding path program 8 times [2023-11-21 19:55:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 19:55:40,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083670239] [2023-11-21 19:55:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:40,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:40,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 19:55:40,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083670239] [2023-11-21 19:55:40,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083670239] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:55:40,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388074059] [2023-11-21 19:55:40,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 19:55:40,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:40,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 19:55:40,627 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:55:40,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 19:55:40,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 19:55:40,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:55:40,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-21 19:55:40,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:55:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:40,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:55:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:55:41,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388074059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:55:41,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:55:41,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-11-21 19:55:41,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507665833] [2023-11-21 19:55:41,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:55:41,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-21 19:55:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 19:55:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-21 19:55:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2023-11-21 19:55:41,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:41,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 19:55:41,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.875) internal successors, (138), 47 states have internal predecessors, (138), 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) [2023-11-21 19:55:41,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:41,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:41,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2023-11-21 19:55:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 19:55:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 19:55:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 19:55:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 19:55:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 19:55:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 19:55:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 19:55:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-21 19:55:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-21 19:55:42,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-21 19:55:42,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-21 19:55:42,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-21 19:55:42,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-21 19:55:42,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:55:42,904 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1] [2023-11-21 19:55:42,906 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 19:55:42,907 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:55:42,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:55:42 BasicIcfg [2023-11-21 19:55:42,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:55:42,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:55:42,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:55:42,910 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:55:42,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:55:30" (3/4) ... [2023-11-21 19:55:42,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:55:42,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2023-11-21 19:55:42,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2023-11-21 19:55:42,917 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-21 19:55:42,917 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-21 19:55:42,918 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 19:55:42,918 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 19:55:42,976 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-21 19:55:42,977 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2023-11-21 19:55:42,977 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:55:42,977 INFO L158 Benchmark]: Toolchain (without parser) took 13328.15ms. Allocated memory was 182.5MB in the beginning and 406.8MB in the end (delta: 224.4MB). Free memory was 122.8MB in the beginning and 316.4MB in the end (delta: -193.6MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,977 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:55:42,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.18ms. Allocated memory is still 182.5MB. Free memory was 122.6MB in the beginning and 103.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.00ms. Allocated memory is still 182.5MB. Free memory was 103.0MB in the beginning and 101.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,978 INFO L158 Benchmark]: Boogie Preprocessor took 43.72ms. Allocated memory is still 182.5MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:55:42,978 INFO L158 Benchmark]: RCFGBuilder took 463.76ms. Allocated memory is still 182.5MB. Free memory was 99.7MB in the beginning and 79.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,979 INFO L158 Benchmark]: TraceAbstraction took 12319.58ms. Allocated memory was 182.5MB in the beginning and 406.8MB in the end (delta: 224.4MB). Free memory was 78.8MB in the beginning and 321.0MB in the end (delta: -242.2MB). Peak memory consumption was 131.2MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,979 INFO L158 Benchmark]: Witness Printer took 67.17ms. Allocated memory is still 406.8MB. Free memory was 321.0MB in the beginning and 316.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:55:42,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.18ms. Allocated memory is still 182.5MB. Free memory was 122.6MB in the beginning and 103.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.00ms. Allocated memory is still 182.5MB. Free memory was 103.0MB in the beginning and 101.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.72ms. Allocated memory is still 182.5MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.76ms. Allocated memory is still 182.5MB. Free memory was 99.7MB in the beginning and 79.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12319.58ms. Allocated memory was 182.5MB in the beginning and 406.8MB in the end (delta: 224.4MB). Free memory was 78.8MB in the beginning and 321.0MB in the end (delta: -242.2MB). Peak memory consumption was 131.2MB. Max. memory is 16.1GB. * Witness Printer took 67.17ms. Allocated memory is still 406.8MB. Free memory was 321.0MB in the beginning and 316.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 122350, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 20670, dependent conditional: 20663, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 104358, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 2678, dependent conditional: 2671, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 104358, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 2678, dependent conditional: 2671, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 13364, dependent unconditional: 10115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 9687, dependent unconditional: 13792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 9687, dependent unconditional: 13792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 715, independent: 373, independent conditional: 149, independent unconditional: 224, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 715, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 492, dependent conditional: 0, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 492, independent: 150, independent conditional: 149, independent unconditional: 1, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 492, independent: 150, independent conditional: 149, independent unconditional: 1, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 575, independent: 184, independent conditional: 162, independent unconditional: 22, dependent: 391, dependent conditional: 350, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 125159, independent: 101307, independent conditional: 7288, independent unconditional: 94019, dependent: 23137, dependent conditional: 9352, dependent unconditional: 13785, unknown: 715, unknown conditional: 484, unknown unconditional: 231] , Statistics on independence cache: Total cache size (in pairs): 715, Positive cache size: 373, Positive conditional cache size: 149, Positive unconditional cache size: 224, Negative cache size: 342, Negative conditional cache size: 335, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3677, Maximal queried relation: 9, Independence queries for same thread: 17992 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 79, Number of trivial persistent sets: 52, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 259, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 122350, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 20670, dependent conditional: 20663, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 104358, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 2678, dependent conditional: 2671, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 104358, independent: 101680, independent conditional: 101428, independent unconditional: 252, dependent: 2678, dependent conditional: 2671, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 13364, dependent unconditional: 10115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 9687, dependent unconditional: 13792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125159, independent: 101680, independent conditional: 7437, independent unconditional: 94243, dependent: 23479, dependent conditional: 9687, dependent unconditional: 13792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 715, independent: 373, independent conditional: 149, independent unconditional: 224, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 715, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 492, dependent conditional: 0, dependent unconditional: 492, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 492, independent: 150, independent conditional: 149, independent unconditional: 1, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 492, independent: 150, independent conditional: 149, independent unconditional: 1, dependent: 342, dependent conditional: 335, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 575, independent: 184, independent conditional: 162, independent unconditional: 22, dependent: 391, dependent conditional: 350, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 125159, independent: 101307, independent conditional: 7288, independent unconditional: 94019, dependent: 23137, dependent conditional: 9352, dependent unconditional: 13785, unknown: 715, unknown conditional: 484, unknown unconditional: 231] , Statistics on independence cache: Total cache size (in pairs): 715, Positive cache size: 373, Positive conditional cache size: 149, Positive unconditional cache size: 224, Negative cache size: 342, Negative conditional cache size: 335, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3677, Maximal queried relation: 9, Independence queries for same thread: 17992 - PositiveResult [Line: 722]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 5.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 215, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 698 NumberOfCodeBlocks, 695 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 934 ConstructedInterpolants, 0 QuantifiedInterpolants, 3690 SizeOfPredicates, 73 NumberOfNonLiveVariables, 1095 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 638/2508 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 19:55:43,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 19:55:43,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE