./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20174008 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/weaver/chl-poker-hand-trans.wvr.c -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 0028e6fa5bf865c1068c8d55bf1863ae46985780e15895ccbb76824c97a247a7 --- Real Ultimate output --- This is Ultimate 0.2.3-?-2017400-m [2023-11-24 09:01:35,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 09:01:35,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-24 09:01:35,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 09:01:35,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 09:01:35,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 09:01:35,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 09:01:35,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 09:01:35,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 09:01:35,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 09:01:35,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 09:01:35,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 09:01:35,132 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 09:01:35,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 09:01:35,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 09:01:35,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 09:01:35,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 09:01:35,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 09:01:35,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 09:01:35,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 09:01:35,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 09:01:35,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 09:01:35,141 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 09:01:35,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 09:01:35,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 09:01:35,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 09:01:35,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 09:01:35,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 09:01:35,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 09:01:35,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 09:01:35,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 09:01:35,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 09:01:35,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 09:01:35,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 09:01:35,143 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 09:01:35,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 09:01:35,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 09:01:35,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 09:01:35,144 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 09:01:35,144 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 09:01:35,144 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 09:01:35,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0028e6fa5bf865c1068c8d55bf1863ae46985780e15895ccbb76824c97a247a7 [2023-11-24 09:01:35,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 09:01:35,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 09:01:35,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 09:01:35,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 09:01:35,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 09:01:35,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-24 09:01:36,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 09:01:36,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 09:01:36,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c [2023-11-24 09:01:36,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/32fb04d41/01c5f0026d4a44068f6480304bce3ac9/FLAGba7c05630 [2023-11-24 09:01:36,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/32fb04d41/01c5f0026d4a44068f6480304bce3ac9 [2023-11-24 09:01:36,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 09:01:36,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 09:01:36,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 09:01:36,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 09:01:36,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 09:01:36,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:01:36" (1/1) ... [2023-11-24 09:01:36,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe2e9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:36, skipping insertion in model container [2023-11-24 09:01:36,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:01:36" (1/1) ... [2023-11-24 09:01:36,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 09:01:37,055 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-24 09:01:37,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 09:01:37,083 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 09:01:37,151 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-trans.wvr.c[18913,18926] [2023-11-24 09:01:37,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 09:01:37,160 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 09:01:37,160 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 09:01:37,165 INFO L206 MainTranslator]: Completed translation [2023-11-24 09:01:37,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37 WrapperNode [2023-11-24 09:01:37,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 09:01:37,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 09:01:37,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 09:01:37,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 09:01:37,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,261 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2379 [2023-11-24 09:01:37,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 09:01:37,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 09:01:37,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 09:01:37,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 09:01:37,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 09:01:37,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 09:01:37,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 09:01:37,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 09:01:37,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (1/1) ... [2023-11-24 09:01:37,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 09:01:37,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:37,436 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) [2023-11-24 09:01:37,451 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 [2023-11-24 09:01:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 09:01:37,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 09:01:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 09:01:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 09:01:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 09:01:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 09:01:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 09:01:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 09:01:37,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 09:01:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 09:01:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 09:01:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 09:01:37,476 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 09:01:37,737 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 09:01:37,739 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 09:01:39,432 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 09:01:41,236 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 09:01:41,236 INFO L309 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-24 09:01:41,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:01:41 BoogieIcfgContainer [2023-11-24 09:01:41,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 09:01:41,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 09:01:41,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 09:01:41,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 09:01:41,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:01:36" (1/3) ... [2023-11-24 09:01:41,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664c4261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:01:41, skipping insertion in model container [2023-11-24 09:01:41,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:01:37" (2/3) ... [2023-11-24 09:01:41,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664c4261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:01:41, skipping insertion in model container [2023-11-24 09:01:41,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:01:41" (3/3) ... [2023-11-24 09:01:41,246 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-trans.wvr.c [2023-11-24 09:01:41,253 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 09:01:41,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 09:01:41,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 09:01:41,260 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 09:01:41,628 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-24 09:01:41,664 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 09:01:41,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 09:01:41,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:41,666 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) [2023-11-24 09:01:41,696 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 [2023-11-24 09:01:41,709 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 09:01:41,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 09:01:41,723 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;@60718ff7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 09:01:41,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 09:01:42,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:42,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1596105455, now seen corresponding path program 1 times [2023-11-24 09:01:42,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:42,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166427194] [2023-11-24 09:01:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:42,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 09:01:42,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:42,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166427194] [2023-11-24 09:01:42,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166427194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 09:01:42,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 09:01:42,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 09:01:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502923771] [2023-11-24 09:01:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 09:01:42,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 09:01:42,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:42,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 09:01:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 09:01:42,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:42,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:42,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-24 09:01:42,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:42,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:42,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 09:01:42,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:42,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:42,891 INFO L85 PathProgramCache]: Analyzing trace with hash 841500375, now seen corresponding path program 1 times [2023-11-24 09:01:42,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:42,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718485372] [2023-11-24 09:01:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 09:01:43,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:43,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718485372] [2023-11-24 09:01:43,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718485372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:43,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148300272] [2023-11-24 09:01:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:43,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:43,149 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) [2023-11-24 09:01:43,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 09:01:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:43,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 09:01:43,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 09:01:43,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 09:01:43,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148300272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 09:01:43,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 09:01:43,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-24 09:01:43,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150918408] [2023-11-24 09:01:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 09:01:43,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 09:01:43,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:43,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 09:01:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 09:01:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:43,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:43,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 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) [2023-11-24 09:01:43,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:43,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:43,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 09:01:44,110 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,SelfDestructingSolverStorable1 [2023-11-24 09:01:44,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:44,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:44,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1860520385, now seen corresponding path program 1 times [2023-11-24 09:01:44,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:44,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683317230] [2023-11-24 09:01:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:44,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 09:01:44,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683317230] [2023-11-24 09:01:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683317230] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:44,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927075422] [2023-11-24 09:01:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:44,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:44,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:44,488 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) [2023-11-24 09:01:44,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 09:01:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:45,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 09:01:45,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 09:01:45,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:01:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-24 09:01:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927075422] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:01:45,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:01:45,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-11-24 09:01:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330739050] [2023-11-24 09:01:45,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:01:45,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 09:01:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:45,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 09:01:45,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-24 09:01:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:45,149 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:45,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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) [2023-11-24 09:01:45,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:45,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:45,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:45,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-24 09:01:45,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:45,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:45,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:45,596 INFO L85 PathProgramCache]: Analyzing trace with hash 466396689, now seen corresponding path program 2 times [2023-11-24 09:01:45,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:45,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116109882] [2023-11-24 09:01:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:45,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-24 09:01:45,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:45,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116109882] [2023-11-24 09:01:45,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116109882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:45,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648373029] [2023-11-24 09:01:45,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 09:01:45,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:45,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:45,910 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) [2023-11-24 09:01:45,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 09:01:46,541 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 09:01:46,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:01:46,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 09:01:46,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-24 09:01:46,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 09:01:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648373029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 09:01:46,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 09:01:46,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-24 09:01:46,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594322473] [2023-11-24 09:01:46,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 09:01:46,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 09:01:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:46,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 09:01:46,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-24 09:01:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:46,619 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:46,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2023-11-24 09:01:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:46,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:46,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 09:01:46,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:46,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:46,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:46,963 INFO L85 PathProgramCache]: Analyzing trace with hash 225717406, now seen corresponding path program 1 times [2023-11-24 09:01:46,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:46,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372438920] [2023-11-24 09:01:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-24 09:01:47,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:47,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372438920] [2023-11-24 09:01:47,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372438920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731066503] [2023-11-24 09:01:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:47,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:47,365 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) [2023-11-24 09:01:47,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 09:01:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:48,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 09:01:48,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-24 09:01:48,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:01:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-24 09:01:48,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731066503] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:01:48,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:01:48,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-24 09:01:48,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534098363] [2023-11-24 09:01:48,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:01:48,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-24 09:01:48,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-24 09:01:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-24 09:01:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:48,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:48,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 09:01:48,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:48,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:48,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:48,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 09:01:48,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:48,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:48,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1018505526, now seen corresponding path program 2 times [2023-11-24 09:01:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906064020] [2023-11-24 09:01:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-11-24 09:01:49,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:49,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906064020] [2023-11-24 09:01:49,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906064020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:49,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979678087] [2023-11-24 09:01:49,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 09:01:49,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:49,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:49,069 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) [2023-11-24 09:01:49,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 09:01:49,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 09:01:49,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:01:49,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 09:01:49,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-11-24 09:01:49,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:01:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-11-24 09:01:49,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979678087] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:01:49,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:01:49,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2023-11-24 09:01:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620353916] [2023-11-24 09:01:49,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:01:49,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-24 09:01:49,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:49,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-24 09:01:49,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=200, Unknown=0, NotChecked=0, Total=380 [2023-11-24 09:01:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:49,935 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:49,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.95) internal successors, (79), 20 states have internal predecessors, (79), 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) [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:49,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:50,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 09:01:50,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:50,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:50,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:50,534 INFO L85 PathProgramCache]: Analyzing trace with hash -506314577, now seen corresponding path program 3 times [2023-11-24 09:01:50,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:50,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204104080] [2023-11-24 09:01:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-11-24 09:01:51,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:51,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204104080] [2023-11-24 09:01:51,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204104080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:51,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536296366] [2023-11-24 09:01:51,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 09:01:51,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:51,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:51,192 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) [2023-11-24 09:01:51,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 09:01:51,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-24 09:01:51,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 09:01:51,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 09:01:51,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-24 09:01:52,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 09:01:52,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536296366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 09:01:52,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 09:01:52,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2023-11-24 09:01:52,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455464469] [2023-11-24 09:01:52,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 09:01:52,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 09:01:52,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:52,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 09:01:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2023-11-24 09:01:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:52,038 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:52,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 09:01:52,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-24 09:01:52,392 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,SelfDestructingSolverStorable6 [2023-11-24 09:01:52,392 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:52,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -259300065, now seen corresponding path program 1 times [2023-11-24 09:01:52,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:52,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927535853] [2023-11-24 09:01:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-24 09:01:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927535853] [2023-11-24 09:01:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927535853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:01:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496427206] [2023-11-24 09:01:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:53,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:53,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:01:53,113 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) [2023-11-24 09:01:53,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 09:01:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:53,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-24 09:01:53,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:01:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-24 09:01:54,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:01:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-24 09:01:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496427206] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 09:01:54,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 09:01:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-11-24 09:01:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907768623] [2023-11-24 09:01:54,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 09:01:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-24 09:01:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-24 09:01:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=484, Unknown=0, NotChecked=0, Total=812 [2023-11-24 09:01:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:54,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:54,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.103448275862069) internal successors, (90), 29 states have internal predecessors, (90), 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) [2023-11-24 09:01:54,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:54,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 09:01:54,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 09:01:54,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-24 09:01:54,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 09:01:54,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:01:54,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:54,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1227180472, now seen corresponding path program 2 times [2023-11-24 09:01:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410155614] [2023-11-24 09:01:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:01:55,315 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-24 09:01:55,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:01:55,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410155614] [2023-11-24 09:01:55,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410155614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 09:01:55,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 09:01:55,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 09:01:55,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861604561] [2023-11-24 09:01:55,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 09:01:55,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 09:01:55,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 09:01:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 09:01:55,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 09:01:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:55,319 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 09:01:55,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:55,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 09:01:55,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-11-24 09:01:55,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 09:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-24 09:01:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 09:01:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-24 09:01:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 09:01:55,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 09:01:55,438 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 09:01:55,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 09:01:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash -169938091, now seen corresponding path program 1 times [2023-11-24 09:01:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 09:01:55,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658683212] [2023-11-24 09:01:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:01:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 09:01:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:02:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-24 09:02:01,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 09:02:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658683212] [2023-11-24 09:02:01,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658683212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 09:02:01,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834834318] [2023-11-24 09:02:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 09:02:01,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 09:02:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 09:02:01,633 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 09:02:01,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-24 09:02:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 09:02:02,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 09:02:02,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 09:02:07,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 09:02:07,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 494 [2023-11-24 09:02:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-24 09:02:08,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 09:04:11,932 WARN L293 SmtUtils]: Spent 2.00m on a formula simplification that was a NOOP. DAG size: 3447 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-24 09:04:11,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 09:04:11,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 37 select indices, 37 select index equivalence classes, 0 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 666 case distinctions, treesize of input 1431 treesize of output 9778 Killed by 15