./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 559b036c Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- Real Ultimate output --- This is Ultimate 0.2.3-?-559b036-m [2023-11-23 04:22:34,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 04:22:34,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 04:22:34,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 04:22:34,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 04:22:34,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 04:22:34,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 04:22:34,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 04:22:34,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 04:22:34,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 04:22:34,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 04:22:34,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 04:22:34,954 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 04:22:34,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 04:22:34,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 04:22:34,956 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 04:22:34,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 04:22:34,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 04:22:34,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 04:22:34,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 04:22:34,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 04:22:34,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 04:22:34,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 04:22:34,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 04:22:34,967 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 04:22:34,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 04:22:34,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 04:22:34,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 04:22:34,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 04:22:34,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:22:34,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 04:22:34,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 04:22:34,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 04:22:34,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 04:22:34,970 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 04:22:34,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 04:22:34,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 04:22:34,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 04:22:34,971 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 04:22:34,971 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 04:22:34,972 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 04:22:34,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2023-11-23 04:22:35,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 04:22:35,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 04:22:35,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 04:22:35,255 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 04:22:35,256 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 04:22:35,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-11-23 04:22:36,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 04:22:36,839 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 04:22:36,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-11-23 04:22:36,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/25a22297b/2c68b02439ec4f088eaa06e256c08145/FLAG8dff16f47 [2023-11-23 04:22:36,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/25a22297b/2c68b02439ec4f088eaa06e256c08145 [2023-11-23 04:22:36,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 04:22:36,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 04:22:36,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 04:22:36,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 04:22:36,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 04:22:36,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:22:36" (1/1) ... [2023-11-23 04:22:36,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748f26a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:36, skipping insertion in model container [2023-11-23 04:22:36,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:22:36" (1/1) ... [2023-11-23 04:22:36,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 04:22:37,270 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-11-23 04:22:37,294 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-11-23 04:22:37,301 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-11-23 04:22:37,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:22:37,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 04:22:37,382 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-11-23 04:22:37,385 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-11-23 04:22:37,389 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-11-23 04:22:37,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:22:37,437 INFO L206 MainTranslator]: Completed translation [2023-11-23 04:22:37,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37 WrapperNode [2023-11-23 04:22:37,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 04:22:37,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 04:22:37,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 04:22:37,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 04:22:37,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,505 INFO L138 Inliner]: procedures = 169, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2023-11-23 04:22:37,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 04:22:37,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 04:22:37,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 04:22:37,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 04:22:37,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 04:22:37,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 04:22:37,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 04:22:37,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 04:22:37,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (1/1) ... [2023-11-23 04:22:37,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:22:37,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:37,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 04:22:37,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 04:22:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 04:22:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-23 04:22:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-23 04:22:37,679 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-23 04:22:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-23 04:22:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 04:22:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 04:22:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 04:22:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 04:22:37,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 04:22:37,683 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 04:22:37,814 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 04:22:37,816 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 04:22:38,071 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 04:22:38,298 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 04:22:38,299 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 04:22:38,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:22:38 BoogieIcfgContainer [2023-11-23 04:22:38,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 04:22:38,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 04:22:38,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 04:22:38,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 04:22:38,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:22:36" (1/3) ... [2023-11-23 04:22:38,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f00bb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:22:38, skipping insertion in model container [2023-11-23 04:22:38,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:22:37" (2/3) ... [2023-11-23 04:22:38,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f00bb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:22:38, skipping insertion in model container [2023-11-23 04:22:38,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:22:38" (3/3) ... [2023-11-23 04:22:38,314 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2023-11-23 04:22:38,323 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 04:22:38,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 04:22:38,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 04:22:38,333 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 04:22:38,409 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 04:22:38,448 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:38,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 04:22:38,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:38,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 04:22:38,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-23 04:22:38,483 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 04:22:38,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2023-11-23 04:22:38,502 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f8710e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:38,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 04:22:39,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:39,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:39,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1807394834, now seen corresponding path program 1 times [2023-11-23 04:22:39,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466586376] [2023-11-23 04:22:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:40,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:40,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:40,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466586376] [2023-11-23 04:22:40,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466586376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:40,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:40,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:40,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736361442] [2023-11-23 04:22:40,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:40,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:40,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:40,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,317 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:40,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:40,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 04:22:40,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:40,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1791929901, now seen corresponding path program 1 times [2023-11-23 04:22:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:40,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704916175] [2023-11-23 04:22:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 04:22:40,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:40,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704916175] [2023-11-23 04:22:40,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704916175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:40,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:40,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:40,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70305300] [2023-11-23 04:22:40,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:40,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:40,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:40,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:40,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,588 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:40,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:40,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 04:22:40,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:40,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2045830047, now seen corresponding path program 1 times [2023-11-23 04:22:40,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:40,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646932542] [2023-11-23 04:22:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:40,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:40,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646932542] [2023-11-23 04:22:40,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646932542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:40,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:40,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 04:22:40,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144566756] [2023-11-23 04:22:40,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:40,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 04:22:40,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:40,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 04:22:40,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 04:22:40,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,869 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:40,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:40,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:40,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 04:22:40,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:40,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash 71512693, now seen corresponding path program 1 times [2023-11-23 04:22:40,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:40,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46388420] [2023-11-23 04:22:40,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:40,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:41,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:41,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46388420] [2023-11-23 04:22:41,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46388420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:41,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:41,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 04:22:41,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111799067] [2023-11-23 04:22:41,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:41,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:41,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:41,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:41,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:41,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:41,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 04:22:41,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:41,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1077743245, now seen corresponding path program 1 times [2023-11-23 04:22:41,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:41,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111684450] [2023-11-23 04:22:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:41,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:41,313 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 04:22:41,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893529444] [2023-11-23 04:22:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:41,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:41,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 04:22:41,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 04:22:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:41,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 04:22:41,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:22:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-23 04:22:41,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 04:22:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111684450] [2023-11-23 04:22:41,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 04:22:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893529444] [2023-11-23 04:22:41,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893529444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:41,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:41,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 04:22:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996604336] [2023-11-23 04:22:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:41,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 04:22:41,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 04:22:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 04:22:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:41,677 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:41,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:41,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:41,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:41,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 04:22:41,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:41,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:41,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1915268919, now seen corresponding path program 1 times [2023-11-23 04:22:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332779540] [2023-11-23 04:22:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:42,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 04:22:42,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932183835] [2023-11-23 04:22:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:42,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:42,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:42,049 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 04:22:42,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 04:22:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:42,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 04:22:42,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:22:42,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 04:22:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-23 04:22:42,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 04:22:42,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332779540] [2023-11-23 04:22:42,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 04:22:42,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932183835] [2023-11-23 04:22:42,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932183835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:42,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:42,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055832878] [2023-11-23 04:22:42,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:42,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:42,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:42,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:42,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:42,338 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:42,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:42,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:42,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 04:22:42,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:42,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:42,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:42,616 INFO L85 PathProgramCache]: Analyzing trace with hash -29667548, now seen corresponding path program 2 times [2023-11-23 04:22:42,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:42,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674884715] [2023-11-23 04:22:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:42,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:42,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 04:22:42,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217139048] [2023-11-23 04:22:42,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 04:22:42,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:42,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 04:22:42,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 04:22:42,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 04:22:42,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 04:22:42,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 04:22:42,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:22:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 04:22:42,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 04:22:42,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:42,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674884715] [2023-11-23 04:22:42,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 04:22:42,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217139048] [2023-11-23 04:22:42,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217139048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:42,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:42,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 04:22:42,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905124387] [2023-11-23 04:22:42,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:42,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 04:22:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:42,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 04:22:42,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 04:22:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:42,815 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:42,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:42,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 04:22:47,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-23 04:22:47,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-23 04:22:47,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 04:22:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:47,566 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-23 04:22:47,569 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was SAFE,SAFE (1/3) [2023-11-23 04:22:47,572 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 04:22:47,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:47,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 04:22:47,579 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 04:22:47,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 04:22:47,580 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f8710e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:47,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 04:22:47,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-11-23 04:22:49,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-11-23 04:22:49,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-23 04:22:49,842 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-11-23 04:22:49,842 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2023-11-23 04:22:49,843 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:49,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 04:22:49,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:49,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 04:22:49,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-11-23 04:22:49,852 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 04:22:49,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork0 ======== [2023-11-23 04:22:49,853 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f8710e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:22:49,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 04:22:51,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash -815220810, now seen corresponding path program 1 times [2023-11-23 04:22:51,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815545648] [2023-11-23 04:22:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:51,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:51,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815545648] [2023-11-23 04:22:51,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815545648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:51,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:51,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 04:22:51,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34612712] [2023-11-23 04:22:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:51,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:51,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:51,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:51,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 04:22:51,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,279 INFO L85 PathProgramCache]: Analyzing trace with hash 186410603, now seen corresponding path program 1 times [2023-11-23 04:22:51,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799449866] [2023-11-23 04:22:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 04:22:51,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:51,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799449866] [2023-11-23 04:22:51,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799449866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:51,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:51,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:51,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582347647] [2023-11-23 04:22:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:51,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:51,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,418 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:51,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:51,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 04:22:51,465 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1467656430, now seen corresponding path program 1 times [2023-11-23 04:22:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754942474] [2023-11-23 04:22:51,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 04:22:51,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:51,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754942474] [2023-11-23 04:22:51,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754942474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:51,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:51,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:51,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264638563] [2023-11-23 04:22:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:51,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:51,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,521 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:51,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:51,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 04:22:51,586 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,586 INFO L85 PathProgramCache]: Analyzing trace with hash -725410803, now seen corresponding path program 1 times [2023-11-23 04:22:51,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255023064] [2023-11-23 04:22:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 04:22:51,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:51,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255023064] [2023-11-23 04:22:51,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255023064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:51,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 04:22:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62147749] [2023-11-23 04:22:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:51,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 04:22:51,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 04:22:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 04:22:51,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:51,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:51,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 04:22:51,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,698 INFO L85 PathProgramCache]: Analyzing trace with hash -137100289, now seen corresponding path program 1 times [2023-11-23 04:22:51,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930943039] [2023-11-23 04:22:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:51,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930943039] [2023-11-23 04:22:51,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930943039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:51,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:51,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 04:22:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326202082] [2023-11-23 04:22:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:51,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 04:22:51,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 04:22:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 04:22:51,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,773 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:51,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:51,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:51,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 04:22:51,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:51,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:51,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1125336516, now seen corresponding path program 1 times [2023-11-23 04:22:51,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:51,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672696616] [2023-11-23 04:22:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:51,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 04:22:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524311470] [2023-11-23 04:22:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:51,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:51,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:51,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 04:22:51,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 04:22:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:52,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 04:22:52,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:22:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:52,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 04:22:52,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:22:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672696616] [2023-11-23 04:22:52,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 04:22:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524311470] [2023-11-23 04:22:52,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524311470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 04:22:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 04:22:52,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 04:22:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549081973] [2023-11-23 04:22:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 04:22:52,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 04:22:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:22:52,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 04:22:52,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 04:22:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:52,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:22:52,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:52,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:22:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:22:52,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:22:52,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 04:22:52,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 04:22:52,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 04:22:52,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 04:22:52,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1664668833, now seen corresponding path program 1 times [2023-11-23 04:22:52,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 04:22:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19650601] [2023-11-23 04:22:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:52,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 04:22:52,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 04:22:52,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388704361] [2023-11-23 04:22:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 04:22:52,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 04:22:52,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:22:52,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 04:22:52,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 04:22:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 04:22:52,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-23 04:22:52,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 04:22:52,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 04:22:52,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 6 [2023-11-23 04:22:52,905 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-11-23 04:22:52,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-11-23 04:22:52,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2023-11-23 04:22:53,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-11-23 04:22:53,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2023-11-23 04:22:53,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2023-11-23 04:22:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:22:53,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 04:23:27,801 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 465 DAG size of output: 456 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:24:02,327 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~buffer_size~0 4294967296)) (.cse12 (mod c_~next~0 4294967296))) (or (let ((.cse45 (mod (mod (+ c_~next~0 1) 4294967296) .cse0))) (let ((.cse31 (mod (mod (mod (+ .cse45 1) 4294967296) .cse0) 4294967296)) (.cse7 (mod c_~first~0 4294967296))) (let ((.cse4 (< 2147483647 .cse7)) (.cse14 (< 2147483647 .cse12)) (.cse13 (< .cse12 2147483648)) (.cse21 (< .cse7 2147483648)) (.cse32 (<= 1 .cse31)) (.cse8 (mod .cse45 4294967296)) (.cse11 (+ |c_t1Thread1of1ForFork1_~i~0#1| 1)) (.cse1 (+ .cse7 1))) (and (or (< .cse0 .cse1) (let ((.cse10 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse5 (< .cse10 2147483648)) (.cse18 (< 2147483647 .cse10)) (.cse25 (< .cse8 2147483648)) (.cse29 (< 2147483647 .cse8)) (.cse2 (mod .cse11 256))) (and (or (< .cse2 128) (let ((.cse30 (+ .cse10 1))) (let ((.cse23 (= (+ 2 |c_t1Thread1of1ForFork1_~i~0#1|) 0)) (.cse24 (and .cse32 (<= .cse30 .cse0))) (.cse3 (< .cse31 1)) (.cse9 (+ (- 256) .cse2)) (.cse22 (< .cse0 .cse30))) (and (or (and (or .cse3 (and (or .cse4 (and (or .cse5 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_24 Int) (|~#buffer~0.offset| Int)) (let ((.cse6 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_24))) (or (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse6 (+ |~#buffer~0.offset| .cse7)))) (= (select (store .cse6 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11)))) .cse13) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_25 Int) (|~#buffer~0.offset| Int)) (let ((.cse15 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_25))) (or (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse15 (+ |~#buffer~0.offset| .cse7)))) (= (select (store .cse15 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11))))))) (or (and (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_22 Int) (|~#buffer~0.offset| Int)) (let ((.cse16 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_22))) (or (not (= (select .cse16 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)) (= .cse11 (select (store .cse16 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10))))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_23 Int) (|~#buffer~0.offset| Int)) (let ((.cse17 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_23))) (or (not (= (select .cse17 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)) (= (select (store .cse17 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10)) .cse11)))) .cse13)) .cse18))) (or (and (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_26 Int)) (let ((.cse19 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_26))) (or (= (select (store .cse19 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse19 (+ |~#buffer~0.offset| .cse7 (- 4294967296))))))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_27 Int)) (let ((.cse20 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_27))) (or (not (= (select .cse20 (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)) (= .cse11 (select (store .cse20 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))))))) .cse13)) .cse21)) .cse22) (or .cse23 (and (or .cse4 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_21 Int)) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_21) (+ |~#buffer~0.offset| .cse7))))) .cse13) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_20 Int)) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_20) (+ |~#buffer~0.offset| .cse7)))))))) (or (and (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_18 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_18) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_19 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_19) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|))) .cse13)) .cse21)) .cse24)) .cse25) (or (and (or .cse23 (and (or .cse4 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_16 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_16) (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_15 Int)) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_15) (+ |~#buffer~0.offset| .cse7 (- 4294967296)))))) .cse21)) .cse24) (or .cse3 (and (or .cse5 (and (or .cse4 (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_14 Int) (|~#buffer~0.offset| Int)) (let ((.cse26 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_14))) (or (not (= (select .cse26 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)) (= (select (store .cse26 (+ |~#buffer~0.offset| .cse8) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_12 Int) (|~#buffer~0.offset| Int)) (let ((.cse27 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_12))) (or (= (select (store .cse27 (+ |~#buffer~0.offset| .cse8) .cse9) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= (select .cse27 (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|))))) .cse21))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_9 Int)) (let ((.cse28 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_9))) (or (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse28 (+ |~#buffer~0.offset| .cse7)))) (= (select (store .cse28 (+ |~#buffer~0.offset| .cse8) .cse9) (+ |~#buffer~0.offset| .cse10)) .cse11)))) .cse18)) .cse22)) .cse29))))) (or (let ((.cse36 (< 0 .cse31)) (.cse34 (< .cse10 .cse0))) (and (or .cse4 (and (or (and (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_44 Int) (|~#buffer~0.offset| Int)) (let ((.cse33 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_44))) (or (= .cse11 (select (store .cse33 (+ |~#buffer~0.offset| .cse8) .cse2) (+ |~#buffer~0.offset| .cse10))) (not (= (select .cse33 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|))))) .cse18) (or .cse34 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_49 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_49) (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)))) (or .cse5 (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_47 Int) (|~#buffer~0.offset| Int)) (let ((.cse35 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_47))) (or (not (= (select .cse35 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)) (= (select (store .cse35 (+ |~#buffer~0.offset| .cse8) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_45 Int) (|~#buffer~0.offset| Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_45) (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|))) .cse36)) .cse29) (or .cse25 (and (or .cse36 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_41 Int)) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_41) (+ |~#buffer~0.offset| .cse7))))) .cse14) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_42 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_42) (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|))) .cse13))) (or .cse5 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_38 Int)) (let ((.cse37 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_38))) (or (= (select (store .cse37 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= (select .cse37 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|))))) .cse13) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_37 Int)) (let ((.cse38 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_37))) (or (= (select (store .cse38 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse38 (+ |~#buffer~0.offset| .cse7)))))))))) (or (and (or .cse13 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_39 Int)) (let ((.cse39 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_39))) (or (not (= (select .cse39 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|)) (= (select (store .cse39 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10)) .cse11))))) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_40 Int)) (let ((.cse40 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_40))) (or (= .cse11 (select (store .cse40 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10))) (not (= (select .cse40 (+ |~#buffer~0.offset| .cse7)) |c_t1Thread1of1ForFork1_~i~0#1|))))))) .cse18))))) (or (and (or .cse25 (and (or .cse34 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_33 Int) (|~#buffer~0.offset| Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_33) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|))) .cse13) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_32 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_32) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))))) (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_29 Int)) (let ((.cse41 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_29))) (or (= .cse11 (select (store .cse41 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296)))) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select .cse41 (+ |~#buffer~0.offset| .cse7 (- 4294967296))))))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_28 Int)) (let ((.cse42 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_28))) (or (= (select (store .cse42 (+ |~#buffer~0.offset| .cse8 (- 4294967296)) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= (select .cse42 (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|))))) .cse13) (or (and (or .cse14 (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_30 Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_30) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_31 Int)) (not (= |c_t1Thread1of1ForFork1_~i~0#1| (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_31) (+ |~#buffer~0.offset| .cse7 (- 4294967296)))))) .cse13)) .cse36))) (or (and (or .cse34 (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_34 Int) (|~#buffer~0.offset| Int)) (not (= (select (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_34) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))) (forall ((v_ArrVal_832 (Array Int Int)) (v_DerPreprocessor_36 Int) (|~#buffer~0.offset| Int)) (let ((.cse43 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_36))) (or (= (select (store .cse43 (+ |~#buffer~0.offset| .cse8) .cse2) (+ |~#buffer~0.offset| .cse10 (- 4294967296))) .cse11) (not (= (select .cse43 (+ |~#buffer~0.offset| .cse7 (- 4294967296))) |c_t1Thread1of1ForFork1_~i~0#1|)))))) .cse29)) .cse21))) (< 127 .cse2))))) (< .cse8 1)) (let ((.cse44 (<= .cse1 .cse0))) (or (and (or .cse4 (and (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_7 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12) v_DerPreprocessor_7) (+ |~#buffer~0.offset| .cse8) 0) (+ |~#buffer~0.offset| .cse7)) 0)) .cse14) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_8 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_8) (+ |~#buffer~0.offset| .cse8) 0) (+ |~#buffer~0.offset| .cse7)) 0)) .cse13))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|~#buffer~0.offset| Int) (v_DerPreprocessor_4 Int)) (= (select (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_832) |c_~#buffer~0.base|) (+ |~#buffer~0.offset| .cse12 (- 4294967296)) v_DerPreprocessor_4) (+ |~#buffer~0.offset| .cse8) 0) (+ |~#buffer~0.offset| .cse7 (- 4294967296))) 0)) .cse21) .cse32 .cse44) (and (<= 1 .cse8) .cse44) (not (= .cse11 0)))))))) (< .cse0 (+ .cse12 1)) (= (mod c_~send~0 256) 0))) is different from false [2023-11-23 04:24:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 04:24:07,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 04:24:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19650601] [2023-11-23 04:24:07,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 04:24:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388704361] [2023-11-23 04:24:07,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388704361] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 04:24:07,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 04:24:07,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2023-11-23 04:24:07,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262069665] [2023-11-23 04:24:07,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 04:24:07,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 04:24:07,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 04:24:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 04:24:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=616, Unknown=1, NotChecked=52, Total=812 [2023-11-23 04:24:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:24:07,106 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 04:24:07,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 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) [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 04:24:07,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 04:24:31,249 WARN L293 SmtUtils]: Spent 19.06s on a formula simplification. DAG size of input: 798 DAG size of output: 467 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:24:33,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:24:35,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:24:37,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:24:39,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:24:41,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:24:51,689 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 336 DAG size of output: 395 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:25:14,368 WARN L293 SmtUtils]: Spent 19.01s on a formula simplification. DAG size of input: 713 DAG size of output: 906 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:25:16,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:25:33,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:25:42,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-23 04:26:46,658 WARN L293 SmtUtils]: Spent 47.15s on a formula simplification. DAG size of input: 822 DAG size of output: 899 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:27:12,685 WARN L293 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 435 DAG size of output: 377 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:27:43,675 WARN L293 SmtUtils]: Spent 26.05s on a formula simplification. DAG size of input: 805 DAG size of output: 882 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:28:40,431 WARN L293 SmtUtils]: Spent 52.70s on a formula simplification. DAG size of input: 822 DAG size of output: 443 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:29:36,182 WARN L293 SmtUtils]: Spent 51.95s on a formula simplification. DAG size of input: 819 DAG size of output: 920 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:30:32,924 WARN L293 SmtUtils]: Spent 44.95s on a formula simplification. DAG size of input: 657 DAG size of output: 481 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 04:31:30,229 WARN L293 SmtUtils]: Spent 47.44s on a formula simplification. DAG size of input: 684 DAG size of output: 567 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Killed by 15