./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca 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/goblint-regression/28-race_reach_91-arrayloop2_racefree.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 ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-16 18:04:31,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-16 18:04:31,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-16 18:04:31,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-16 18:04:31,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-16 18:04:31,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-16 18:04:31,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-16 18:04:31,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-16 18:04:31,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-16 18:04:31,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-16 18:04:31,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-16 18:04:31,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-16 18:04:31,273 INFO L153 SettingsManager]: * Use SBE=true [2024-07-16 18:04:31,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-16 18:04:31,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-16 18:04:31,275 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-16 18:04:31,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-16 18:04:31,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-16 18:04:31,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-16 18:04:31,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-16 18:04:31,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-16 18:04:31,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-16 18:04:31,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-16 18:04:31,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-16 18:04:31,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-16 18:04:31,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-16 18:04:31,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-16 18:04:31,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-16 18:04:31,278 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-16 18:04:31,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-16 18:04:31,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-16 18:04:31,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-16 18:04:31,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-16 18:04:31,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-16 18:04:31,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-16 18:04:31,280 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-16 18:04:31,281 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-16 18:04:31,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-07-16 18:04:31,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-16 18:04:31,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-16 18:04:31,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-16 18:04:31,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-16 18:04:31,548 INFO L274 PluginConnector]: CDTParser initialized [2024-07-16 18:04:31,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-07-16 18:04:32,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-16 18:04:32,961 INFO L384 CDTParser]: Found 1 translation units. [2024-07-16 18:04:32,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-07-16 18:04:32,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c3365b7d1/ff3ef94b6b4e4f71b9e856cab5d8c517/FLAGb47129a34 [2024-07-16 18:04:32,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c3365b7d1/ff3ef94b6b4e4f71b9e856cab5d8c517 [2024-07-16 18:04:33,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-16 18:04:33,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-16 18:04:33,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-16 18:04:33,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-16 18:04:33,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-16 18:04:33,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33, skipping insertion in model container [2024-07-16 18:04:33,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-16 18:04:33,405 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-07-16 18:04:33,421 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,421 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,422 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,423 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,454 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-16 18:04:33,474 INFO L202 MainTranslator]: Completed pre-run [2024-07-16 18:04:33,507 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-07-16 18:04:33,511 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,542 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,542 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,543 WARN L1645 CHandler]: Possible shadowing of function new [2024-07-16 18:04:33,549 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-16 18:04:33,607 INFO L206 MainTranslator]: Completed translation [2024-07-16 18:04:33,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33 WrapperNode [2024-07-16 18:04:33,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-16 18:04:33,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-16 18:04:33,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-16 18:04:33,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-16 18:04:33,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,645 INFO L138 Inliner]: procedures = 278, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2024-07-16 18:04:33,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-16 18:04:33,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-16 18:04:33,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-16 18:04:33,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-16 18:04:33,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-16 18:04:33,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-16 18:04:33,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-16 18:04:33,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-16 18:04:33,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (1/1) ... [2024-07-16 18:04:33,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-16 18:04:33,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:33,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-07-16 18:04:33,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-07-16 18:04:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-07-16 18:04:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-07-16 18:04:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-16 18:04:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-16 18:04:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-16 18:04:33,765 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-16 18:04:33,922 INFO L244 CfgBuilder]: Building ICFG [2024-07-16 18:04:33,924 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-16 18:04:34,205 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-16 18:04:34,206 INFO L293 CfgBuilder]: Performing block encoding [2024-07-16 18:04:34,578 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-16 18:04:34,578 INFO L320 CfgBuilder]: Removed 16 assume(true) statements. [2024-07-16 18:04:34,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.07 06:04:34 BoogieIcfgContainer [2024-07-16 18:04:34,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-16 18:04:34,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-16 18:04:34,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-16 18:04:34,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-16 18:04:34,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.07 06:04:33" (1/3) ... [2024-07-16 18:04:34,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c81e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.07 06:04:34, skipping insertion in model container [2024-07-16 18:04:34,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.07 06:04:33" (2/3) ... [2024-07-16 18:04:34,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c81e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.07 06:04:34, skipping insertion in model container [2024-07-16 18:04:34,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.07 06:04:34" (3/3) ... [2024-07-16 18:04:34,589 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-07-16 18:04:34,609 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-16 18:04:34,617 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-16 18:04:34,618 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-16 18:04:34,618 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-16 18:04:34,697 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-07-16 18:04:34,766 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-16 18:04:34,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-16 18:04:34,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:34,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-16 18:04:34,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-07-16 18:04:34,818 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-16 18:04:34,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-07-16 18:04:34,832 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;@2f8ee53c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-16 18:04:34,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-07-16 18:04:34,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:34,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 895669046, now seen corresponding path program 1 times [2024-07-16 18:04:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116172201] [2024-07-16 18:04:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-16 18:04:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:35,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:35,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116172201] [2024-07-16 18:04:35,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116172201] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-16 18:04:35,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-16 18:04:35,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-16 18:04:35,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554847037] [2024-07-16 18:04:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-16 18:04:35,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-16 18:04:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-16 18:04:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-16 18:04:35,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:35,222 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:35,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-16 18:04:35,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-16 18:04:35,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:35,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1038084009, now seen corresponding path program 1 times [2024-07-16 18:04:35,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:35,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878161305] [2024-07-16 18:04:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:35,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-16 18:04:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:35,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:35,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878161305] [2024-07-16 18:04:35,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878161305] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-16 18:04:35,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-16 18:04:35,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-16 18:04:35,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848490097] [2024-07-16 18:04:35,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-16 18:04:35,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-16 18:04:35,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:35,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-16 18:04:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-16 18:04:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:35,447 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:35,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2024-07-16 18:04:35,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-16 18:04:35,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:35,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1907963568, now seen corresponding path program 1 times [2024-07-16 18:04:35,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:35,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342512072] [2024-07-16 18:04:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:35,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-07-16 18:04:35,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401334040] [2024-07-16 18:04:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:35,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:35,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:35,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-16 18:04:35,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-16 18:04:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-16 18:04:35,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2024-07-16 18:04:35,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-16 18:04:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:35,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-16 18:04:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:35,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:35,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342512072] [2024-07-16 18:04:35,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-07-16 18:04:35,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401334040] [2024-07-16 18:04:35,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401334040] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-16 18:04:35,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-07-16 18:04:35,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-07-16 18:04:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452922676] [2024-07-16 18:04:35,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-07-16 18:04:35,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-16 18:04:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-16 18:04:35,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-07-16 18:04:35,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:35,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:35,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 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) [2024-07-16 18:04:35,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:35,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:36,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:36,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-16 18:04:36,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-07-16 18:04:36,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:36,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -289337705, now seen corresponding path program 2 times [2024-07-16 18:04:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672102523] [2024-07-16 18:04:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:36,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:36,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-07-16 18:04:36,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107701210] [2024-07-16 18:04:36,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-16 18:04:36,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:36,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:36,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-16 18:04:36,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-16 18:04:36,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-16 18:04:36,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-16 18:04:36,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 6 conjunts are in the unsatisfiable core [2024-07-16 18:04:36,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-16 18:04:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:36,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-16 18:04:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-07-16 18:04:36,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672102523] [2024-07-16 18:04:36,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-07-16 18:04:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107701210] [2024-07-16 18:04:36,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107701210] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-16 18:04:36,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-07-16 18:04:36,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-07-16 18:04:36,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96491173] [2024-07-16 18:04:36,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-07-16 18:04:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-07-16 18:04:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-07-16 18:04:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-07-16 18:04:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:36,696 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:36,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-16 18:04:36,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:36,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:36,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:36,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-16 18:04:37,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-07-16 18:04:37,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:37,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:37,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:37,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2052187127, now seen corresponding path program 3 times [2024-07-16 18:04:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:37,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844615798] [2024-07-16 18:04:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:37,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-07-16 18:04:37,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791849410] [2024-07-16 18:04:37,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-16 18:04:37,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:37,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:37,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-16 18:04:37,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-16 18:04:37,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-07-16 18:04:37,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-16 18:04:37,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2024-07-16 18:04:37,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-16 18:04:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-07-16 18:04:37,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-16 18:04:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-07-16 18:04:37,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:37,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844615798] [2024-07-16 18:04:37,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-07-16 18:04:37,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791849410] [2024-07-16 18:04:37,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791849410] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-16 18:04:37,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-07-16 18:04:37,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-07-16 18:04:37,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987317111] [2024-07-16 18:04:37,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-07-16 18:04:37,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-16 18:04:37,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-16 18:04:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-07-16 18:04:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:37,680 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:37,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-07-16 18:04:37,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:37,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-16 18:04:37,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-16 18:04:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:37,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-16 18:04:38,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:38,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:38,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:38,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1354269382, now seen corresponding path program 4 times [2024-07-16 18:04:38,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:38,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263342651] [2024-07-16 18:04:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:38,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-07-16 18:04:38,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146603668] [2024-07-16 18:04:38,496 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-16 18:04:38,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:38,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:38,513 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-16 18:04:38,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-16 18:04:39,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-16 18:04:39,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-16 18:04:39,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 3755 conjuncts, 12 conjunts are in the unsatisfiable core [2024-07-16 18:04:39,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-16 18:04:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-07-16 18:04:39,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-16 18:04:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-07-16 18:04:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-16 18:04:40,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263342651] [2024-07-16 18:04:40,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-07-16 18:04:40,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146603668] [2024-07-16 18:04:40,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146603668] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-16 18:04:40,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-07-16 18:04:40,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-07-16 18:04:40,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575947841] [2024-07-16 18:04:40,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-07-16 18:04:40,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-07-16 18:04:40,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-16 18:04:40,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-07-16 18:04:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-07-16 18:04:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:40,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-16 18:04:40,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 24 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) [2024-07-16 18:04:40,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:40,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:40,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:40,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-16 18:04:40,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:40,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-16 18:04:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-16 18:04:41,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-07-16 18:04:41,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-07-16 18:04:41,461 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-16 18:04:41,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-16 18:04:41,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1624101062, now seen corresponding path program 5 times [2024-07-16 18:04:41,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-16 18:04:41,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650776358] [2024-07-16 18:04:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-16 18:04:41,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-16 18:04:42,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-07-16 18:04:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586682248] [2024-07-16 18:04:42,262 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-07-16 18:04:42,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-16 18:04:42,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-16 18:04:42,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-16 18:04:42,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process Killed by 15