./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 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/popl20-bad-three-array-sum-alt.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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 15:57:22,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 15:57:23,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 15:57:23,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 15:57:23,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 15:57:23,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 15:57:23,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 15:57:23,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 15:57:23,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 15:57:23,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 15:57:23,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 15:57:23,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 15:57:23,092 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 15:57:23,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 15:57:23,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 15:57:23,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 15:57:23,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 15:57:23,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 15:57:23,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 15:57:23,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 15:57:23,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 15:57:23,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 15:57:23,098 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 15:57:23,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 15:57:23,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 15:57:23,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 15:57:23,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 15:57:23,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 15:57:23,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 15:57:23,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 15:57:23,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:57:23,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 15:57:23,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 15:57:23,100 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 15:57:23,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 15:57:23,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 15:57:23,101 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 15:57:23,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 15:57:23,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 15:57:23,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 15:57:23,102 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 15:57:23,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-17 15:57:23,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 15:57:23,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 15:57:23,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 15:57:23,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 15:57:23,318 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 15:57:23,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 15:57:24,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 15:57:24,772 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 15:57:24,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 15:57:24,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65ef68f26/2e8b3eb006094c909d664404d98038d0/FLAGfda93abd9 [2024-10-17 15:57:24,789 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65ef68f26/2e8b3eb006094c909d664404d98038d0 [2024-10-17 15:57:24,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 15:57:24,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 15:57:24,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 15:57:24,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 15:57:24,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 15:57:24,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:57:24" (1/1) ... [2024-10-17 15:57:24,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170b0d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:24, skipping insertion in model container [2024-10-17 15:57:24,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:57:24" (1/1) ... [2024-10-17 15:57:24,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 15:57:24,980 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2451,2464] [2024-10-17 15:57:24,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:57:24,994 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 15:57:25,011 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2451,2464] [2024-10-17 15:57:25,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:57:25,026 INFO L204 MainTranslator]: Completed translation [2024-10-17 15:57:25,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25 WrapperNode [2024-10-17 15:57:25,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 15:57:25,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 15:57:25,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 15:57:25,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 15:57:25,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,063 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 265 [2024-10-17 15:57:25,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 15:57:25,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 15:57:25,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 15:57:25,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 15:57:25,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 15:57:25,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 15:57:25,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 15:57:25,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 15:57:25,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (1/1) ... [2024-10-17 15:57:25,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:57:25,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:25,139 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) [2024-10-17 15:57:25,147 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 [2024-10-17 15:57:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 15:57:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 15:57:25,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 15:57:25,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 15:57:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 15:57:25,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 15:57:25,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 15:57:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 15:57:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 15:57:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 15:57:25,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 15:57:25,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 15:57:25,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 15:57:25,189 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 15:57:25,316 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 15:57:25,317 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 15:57:25,676 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 15:57:25,677 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 15:57:25,954 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 15:57:25,956 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-17 15:57:25,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:57:25 BoogieIcfgContainer [2024-10-17 15:57:25,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 15:57:25,959 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 15:57:25,959 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 15:57:25,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 15:57:25,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 03:57:24" (1/3) ... [2024-10-17 15:57:25,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354ee5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:57:25, skipping insertion in model container [2024-10-17 15:57:25,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:57:25" (2/3) ... [2024-10-17 15:57:25,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@354ee5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:57:25, skipping insertion in model container [2024-10-17 15:57:25,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:57:25" (3/3) ... [2024-10-17 15:57:25,964 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-10-17 15:57:25,977 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 15:57:25,977 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 15:57:25,977 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 15:57:26,038 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-17 15:57:26,110 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 15:57:26,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 15:57:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:26,112 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) [2024-10-17 15:57:26,116 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 [2024-10-17 15:57:26,214 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 15:57:26,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:26,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 15:57:26,238 INFO L333 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, 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;@1b112d92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 15:57:26,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-17 15:57:27,261 INFO L396 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)] === [2024-10-17 15:57:27,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1270328504, now seen corresponding path program 1 times [2024-10-17 15:57:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:27,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145960804] [2024-10-17 15:57:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:27,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:57:27,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:27,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145960804] [2024-10-17 15:57:27,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145960804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:57:27,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 15:57:27,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 15:57:27,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703970119] [2024-10-17 15:57:27,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:57:27,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 15:57:27,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 15:57:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-17 15:57:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:27,706 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:27,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-17 15:57:27,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:27,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 15:57:27,800 INFO L396 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)] === [2024-10-17 15:57:27,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash -965479059, now seen corresponding path program 1 times [2024-10-17 15:57:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911479275] [2024-10-17 15:57:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:27,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 15:57:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:27,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911479275] [2024-10-17 15:57:27,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911479275] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:27,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110708908] [2024-10-17 15:57:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:27,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:27,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:27,978 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) [2024-10-17 15:57:27,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 15:57:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:28,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 15:57:28,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 15:57:28,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 15:57:28,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110708908] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:28,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-17 15:57:28,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-10-17 15:57:28,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731410703] [2024-10-17 15:57:28,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:57:28,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 15:57:28,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:28,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 15:57:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-17 15:57:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:28,196 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:28,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-10-17 15:57:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:28,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 15:57:29,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-17 15:57:29,450 INFO L396 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)] === [2024-10-17 15:57:29,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:29,451 INFO L85 PathProgramCache]: Analyzing trace with hash 482793192, now seen corresponding path program 1 times [2024-10-17 15:57:29,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:29,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703924273] [2024-10-17 15:57:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 15:57:29,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:29,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703924273] [2024-10-17 15:57:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703924273] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349366711] [2024-10-17 15:57:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:29,626 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) [2024-10-17 15:57:29,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 15:57:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:29,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 15:57:29,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 15:57:29,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 15:57:29,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349366711] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:29,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:29,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2024-10-17 15:57:29,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23464326] [2024-10-17 15:57:29,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:29,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-17 15:57:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:29,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-17 15:57:29,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-17 15:57:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:29,827 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:29,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 states have internal predecessors, (61), 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) [2024-10-17 15:57:29,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:29,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 15:57:30,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:30,147 INFO L396 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)] === [2024-10-17 15:57:30,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -853775331, now seen corresponding path program 2 times [2024-10-17 15:57:30,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:30,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651448188] [2024-10-17 15:57:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:30,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 15:57:30,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:30,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651448188] [2024-10-17 15:57:30,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651448188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:30,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500650288] [2024-10-17 15:57:30,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 15:57:30,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:30,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:30,271 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) [2024-10-17 15:57:30,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 15:57:30,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 15:57:30,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:30,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 15:57:30,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 15:57:30,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 15:57:30,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500650288] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:30,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:30,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2024-10-17 15:57:30,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885353360] [2024-10-17 15:57:30,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:30,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-17 15:57:30,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:30,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-17 15:57:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-10-17 15:57:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:30,504 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:30,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 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) [2024-10-17 15:57:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:30,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:33,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 15:57:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:34,026 INFO L396 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)] === [2024-10-17 15:57:34,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1502335780, now seen corresponding path program 3 times [2024-10-17 15:57:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:34,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287447479] [2024-10-17 15:57:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:34,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-17 15:57:34,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:34,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287447479] [2024-10-17 15:57:34,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287447479] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:34,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549973202] [2024-10-17 15:57:34,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 15:57:34,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:34,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:34,617 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) [2024-10-17 15:57:34,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 15:57:34,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-17 15:57:34,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:34,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-17 15:57:34,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 15:57:34,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 15:57:35,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549973202] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:35,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:35,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 8] total 33 [2024-10-17 15:57:35,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892198203] [2024-10-17 15:57:35,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:35,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 15:57:35,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 15:57:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 15:57:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:35,037 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:35,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.323529411764706) internal successors, (79), 33 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) [2024-10-17 15:57:35,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:35,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:35,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:35,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:35,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:35,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-17 15:57:35,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:35,450 INFO L396 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)] === [2024-10-17 15:57:35,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1247545415, now seen corresponding path program 4 times [2024-10-17 15:57:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440518560] [2024-10-17 15:57:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:35,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-17 15:57:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440518560] [2024-10-17 15:57:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440518560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45607544] [2024-10-17 15:57:35,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 15:57:35,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:35,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:35,717 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) [2024-10-17 15:57:35,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 15:57:35,836 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 15:57:35,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:35,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 15:57:35,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:35,962 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 15:57:35,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 15:57:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45607544] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:36,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-10-17 15:57:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683666613] [2024-10-17 15:57:36,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-17 15:57:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:36,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-17 15:57:36,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-10-17 15:57:36,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:36,085 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:36,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 26 states have internal predecessors, (85), 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) [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:36,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:36,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:36,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-17 15:57:36,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:36,443 INFO L396 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)] === [2024-10-17 15:57:36,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1499892028, now seen corresponding path program 5 times [2024-10-17 15:57:36,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:36,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223456982] [2024-10-17 15:57:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:36,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 32 proven. 19 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 15:57:36,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:36,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223456982] [2024-10-17 15:57:36,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223456982] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:36,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975101601] [2024-10-17 15:57:36,813 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 15:57:36,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:36,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:36,815 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) [2024-10-17 15:57:36,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 15:57:37,346 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-10-17 15:57:37,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:37,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-17 15:57:37,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 33 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-17 15:57:37,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-17 15:57:37,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975101601] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:37,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:37,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 7] total 31 [2024-10-17 15:57:37,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840592425] [2024-10-17 15:57:37,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:37,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-17 15:57:37,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:37,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-17 15:57:37,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-10-17 15:57:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:37,592 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:37,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.870967741935484) internal successors, (89), 31 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) [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:37,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 15:57:40,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-17 15:57:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-17 15:57:40,638 INFO L396 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)] === [2024-10-17 15:57:40,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1594340026, now seen corresponding path program 6 times [2024-10-17 15:57:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470689333] [2024-10-17 15:57:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:40,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 15:57:40,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470689333] [2024-10-17 15:57:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470689333] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615771868] [2024-10-17 15:57:40,960 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 15:57:40,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:40,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:40,963 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) [2024-10-17 15:57:40,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 15:57:41,216 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-10-17 15:57:41,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:41,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 15:57:41,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 15:57:41,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 15:57:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615771868] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:41,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-10-17 15:57:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641177302] [2024-10-17 15:57:41,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:41,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 15:57:41,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:41,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 15:57:41,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 15:57:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:41,577 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:41,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 33 states have internal predecessors, (87), 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) [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 15:57:41,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 15:57:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-17 15:57:41,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-17 15:57:41,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:41,940 INFO L396 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)] === [2024-10-17 15:57:41,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:41,941 INFO L85 PathProgramCache]: Analyzing trace with hash 944167727, now seen corresponding path program 7 times [2024-10-17 15:57:41,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:41,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564729710] [2024-10-17 15:57:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:41,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 15:57:42,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:42,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564729710] [2024-10-17 15:57:42,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564729710] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:42,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560570582] [2024-10-17 15:57:42,251 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-17 15:57:42,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:42,254 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) [2024-10-17 15:57:42,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-17 15:57:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:42,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 15:57:42,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 33 proven. 37 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 15:57:42,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:57:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 39 proven. 31 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-17 15:57:42,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560570582] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:57:42,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:57:42,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-10-17 15:57:42,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524450982] [2024-10-17 15:57:42,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:57:42,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 15:57:42,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:57:42,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 15:57:42,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 15:57:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:42,812 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:57:42,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.676470588235294) internal successors, (91), 33 states have internal predecessors, (91), 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) [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-17 15:57:42,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-17 15:57:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-17 15:57:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-17 15:57:45,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-17 15:57:46,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:46,097 INFO L396 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)] === [2024-10-17 15:57:46,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:57:46,098 INFO L85 PathProgramCache]: Analyzing trace with hash -251177074, now seen corresponding path program 8 times [2024-10-17 15:57:46,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:57:46,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016554495] [2024-10-17 15:57:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:57:46,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:57:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:57:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 102 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 15:57:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:57:54,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016554495] [2024-10-17 15:57:54,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016554495] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:57:54,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304080251] [2024-10-17 15:57:54,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 15:57:54,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:57:54,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:57:54,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:57:54,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-17 15:57:54,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 15:57:54,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:57:54,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 149 conjuncts are in the unsatisfiable core [2024-10-17 15:57:54,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:57:55,604 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-10-17 15:57:55,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2024-10-17 15:57:56,082 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-10-17 15:57:56,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 129 treesize of output 152 [2024-10-17 15:57:57,356 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-10-17 15:57:57,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 53 case distinctions, treesize of input 318 treesize of output 324 [2024-10-17 15:58:01,619 INFO L349 Elim1Store]: treesize reduction 734, result has 22.9 percent of original size [2024-10-17 15:58:01,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 15 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 133 case distinctions, treesize of input 923 treesize of output 653 [2024-10-17 15:58:10,421 INFO L349 Elim1Store]: treesize reduction 1152, result has 19.7 percent of original size [2024-10-17 15:58:10,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 28 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 227 case distinctions, treesize of input 1130 treesize of output 809 [2024-10-17 15:58:28,855 INFO L349 Elim1Store]: treesize reduction 640, result has 51.1 percent of original size [2024-10-17 15:58:28,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 45 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 1917 treesize of output 1425 [2024-10-17 16:01:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-17 16:01:22,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:01:29,821 WARN L851 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~C~0.base Int)) (let ((.cse12 (* 4 |c_thread3Thread1of1ForFork0_~i~2#1|))) (let ((.cse17 (select (select |c_#memory_int| c_~A~0.base) (+ .cse12 c_~A~0.offset))) (.cse18 (select (select |c_#memory_int| c_~B~0.base) (+ .cse12 c_~B~0.offset)))) (let ((.cse30 (store (select |c_#memory_int| ~C~0.base) (+ .cse12 ~C~0.offset) (+ .cse17 .cse18)))) (let ((.cse31 (store |c_#memory_int| ~C~0.base .cse30))) (let ((.cse11 (select .cse31 c_~B~0.base)) (.cse0 (select .cse31 c_~A~0.base))) (let ((.cse20 (select .cse0 (+ .cse12 c_~A~0.offset 4))) (.cse22 (select .cse11 (+ .cse12 4 c_~B~0.offset)))) (let ((.cse28 (store .cse30 (+ .cse12 ~C~0.offset 4) (+ .cse20 .cse22)))) (let ((.cse29 (store |c_#memory_int| ~C~0.base .cse28))) (let ((.cse8 (select .cse29 c_~B~0.base)) (.cse5 (select .cse29 c_~A~0.base))) (let ((.cse13 (select .cse5 (+ .cse12 c_~A~0.offset 8))) (.cse21 (select .cse8 (+ .cse12 8 c_~B~0.offset)))) (let ((.cse26 (store .cse28 (+ .cse12 ~C~0.offset 8) (+ .cse13 .cse21)))) (let ((.cse27 (store |c_#memory_int| ~C~0.base .cse26))) (let ((.cse2 (select .cse27 c_~B~0.base)) (.cse6 (select .cse27 c_~A~0.base))) (let ((.cse14 (select .cse6 (+ .cse12 c_~A~0.offset 12))) (.cse15 (select .cse2 (+ .cse12 12 c_~B~0.offset)))) (let ((.cse24 (store .cse26 (+ .cse12 ~C~0.offset 12) (+ .cse14 .cse15)))) (let ((.cse25 (store |c_#memory_int| ~C~0.base .cse24))) (let ((.cse4 (select .cse25 c_~A~0.base)) (.cse7 (select .cse25 c_~B~0.base))) (let ((.cse16 (select .cse7 (+ .cse12 16 c_~B~0.offset))) (.cse19 (select .cse4 (+ .cse12 c_~A~0.offset 16)))) (let ((.cse23 (store |c_#memory_int| ~C~0.base (store .cse24 (+ .cse12 ~C~0.offset 16) (+ .cse16 .cse19))))) (let ((.cse9 (select .cse23 c_~A~0.base)) (.cse10 (select .cse23 c_~B~0.base))) (= (let ((.cse1 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (.cse3 (* |c_thread2Thread1of1ForFork2_~i~1#1| 4))) (+ (select .cse0 (+ .cse1 c_~A~0.offset)) (select .cse2 (+ .cse3 8 c_~B~0.offset)) (select .cse4 (+ .cse1 c_~A~0.offset 12)) (select .cse5 (+ .cse1 c_~A~0.offset 4)) (select .cse6 (+ .cse1 c_~A~0.offset 8)) (select .cse7 (+ .cse3 12 c_~B~0.offset)) c_~asum~0 (select .cse8 (+ .cse3 4 c_~B~0.offset)) c_~bsum~0 (select .cse9 (+ .cse1 c_~A~0.offset 16)) (select .cse10 (+ .cse3 16 c_~B~0.offset)) (select .cse11 (+ .cse3 c_~B~0.offset)))) (+ (select .cse9 (+ .cse12 c_~A~0.offset 20)) .cse13 .cse14 .cse15 (select .cse10 (+ .cse12 20 c_~B~0.offset)) .cse16 .cse17 .cse18 .cse19 c_~csum~0 .cse20 .cse21 .cse22))))))))))))))))))))))) is different from false [2024-10-17 16:01:32,089 WARN L851 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~B~0.base Int) (~C~0.base Int)) (let ((.cse5 (select |c_#memory_int| ~B~0.base)) (.cse13 (* 4 |c_thread3Thread1of1ForFork0_~i~2#1|))) (let ((.cse16 (select (select |c_#memory_int| c_~A~0.base) (+ .cse13 c_~A~0.offset))) (.cse17 (select .cse5 (+ .cse13 c_~B~0.offset)))) (let ((.cse31 (store (select |c_#memory_int| ~C~0.base) (+ .cse13 ~C~0.offset) (+ .cse16 .cse17)))) (let ((.cse32 (store |c_#memory_int| ~C~0.base .cse31))) (let ((.cse9 (select .cse32 c_~A~0.base)) (.cse8 (select .cse32 ~B~0.base))) (let ((.cse18 (select .cse8 (+ .cse13 4 c_~B~0.offset))) (.cse19 (select .cse9 (+ .cse13 c_~A~0.offset 4)))) (let ((.cse29 (store .cse31 (+ .cse13 ~C~0.offset 4) (+ .cse18 .cse19)))) (let ((.cse30 (store |c_#memory_int| ~C~0.base .cse29))) (let ((.cse0 (select .cse30 c_~A~0.base)) (.cse10 (select .cse30 ~B~0.base))) (let ((.cse22 (select .cse10 (+ .cse13 8 c_~B~0.offset))) (.cse23 (select .cse0 (+ .cse13 c_~A~0.offset 8)))) (let ((.cse27 (store .cse29 (+ .cse13 ~C~0.offset 8) (+ .cse22 .cse23)))) (let ((.cse28 (store |c_#memory_int| ~C~0.base .cse27))) (let ((.cse3 (select .cse28 c_~A~0.base)) (.cse11 (select .cse28 ~B~0.base))) (let ((.cse15 (select .cse11 (+ .cse13 12 c_~B~0.offset))) (.cse21 (select .cse3 (+ .cse13 c_~A~0.offset 12)))) (let ((.cse25 (store .cse27 (+ .cse13 ~C~0.offset 12) (+ .cse15 .cse21)))) (let ((.cse26 (store |c_#memory_int| ~C~0.base .cse25))) (let ((.cse12 (select .cse26 ~B~0.base)) (.cse2 (select .cse26 c_~A~0.base))) (let ((.cse14 (select .cse2 (+ .cse13 c_~A~0.offset 16))) (.cse20 (select .cse12 (+ .cse13 16 c_~B~0.offset)))) (let ((.cse24 (store |c_#memory_int| ~C~0.base (store .cse25 (+ .cse13 ~C~0.offset 16) (+ .cse14 .cse20))))) (let ((.cse4 (select .cse24 c_~A~0.base)) (.cse7 (select .cse24 ~B~0.base))) (= (let ((.cse1 (* |c_thread1Thread1of1ForFork1_~i~0#1| 4)) (.cse6 (* |c_thread2Thread1of1ForFork2_~i~1#1| 4))) (+ (select .cse0 (+ .cse1 c_~A~0.offset 4)) (select .cse2 (+ .cse1 c_~A~0.offset 12)) c_~asum~0 (select .cse3 (+ .cse1 c_~A~0.offset 8)) c_~bsum~0 (select .cse4 (+ .cse1 c_~A~0.offset 16)) (select .cse5 (+ .cse6 c_~B~0.offset)) (select .cse7 (+ .cse6 20 c_~B~0.offset)) (select .cse8 (+ .cse6 4 c_~B~0.offset)) (select .cse9 (+ .cse1 c_~A~0.offset)) (select .cse10 (+ .cse6 8 c_~B~0.offset)) (select .cse11 (+ .cse6 12 c_~B~0.offset)) (select .cse12 (+ .cse6 16 c_~B~0.offset)))) (+ (select .cse4 (+ .cse13 c_~A~0.offset 20)) (select .cse7 (+ .cse13 20 c_~B~0.offset)) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 c_~csum~0 .cse22 .cse23))))))))))))))))))))))) is different from false