./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 22:19:11,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 22:19:11,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 22:19:11,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 22:19:11,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 22:19:11,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 22:19:11,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 22:19:11,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 22:19:11,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 22:19:11,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 22:19:11,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 22:19:11,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 22:19:11,378 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 22:19:11,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 22:19:11,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 22:19:11,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 22:19:11,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 22:19:11,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 22:19:11,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 22:19:11,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 22:19:11,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 22:19:11,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 22:19:11,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 22:19:11,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 22:19:11,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 22:19:11,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 22:19:11,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 22:19:11,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 22:19:11,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 22:19:11,384 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 22:19:11,386 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 22:19:11,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 22:19:11,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 22:19:11,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 22:19:11,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 22:19:11,684 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 22:19:11,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-17 22:19:12,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 22:19:13,220 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 22:19:13,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-10-17 22:19:13,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bc6c9cab6/e289a096f0b2410c91a24f28ba0394c8/FLAGf963ae61b [2024-10-17 22:19:13,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bc6c9cab6/e289a096f0b2410c91a24f28ba0394c8 [2024-10-17 22:19:13,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 22:19:13,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 22:19:13,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 22:19:13,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 22:19:13,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 22:19:13,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:19:13" (1/1) ... [2024-10-17 22:19:13,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101e42d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:13, skipping insertion in model container [2024-10-17 22:19:13,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:19:13" (1/1) ... [2024-10-17 22:19:13,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 22:19:13,978 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_90-arrayloop2_racing.i[47038,47051] [2024-10-17 22:19:13,996 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:13,997 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:13,998 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:13,999 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:14,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 22:19:14,061 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 22:19:14,103 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_90-arrayloop2_racing.i[47038,47051] [2024-10-17 22:19:14,108 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:14,109 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:14,109 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:14,109 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-17 22:19:14,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 22:19:14,183 INFO L204 MainTranslator]: Completed translation [2024-10-17 22:19:14,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14 WrapperNode [2024-10-17 22:19:14,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 22:19:14,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 22:19:14,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 22:19:14,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 22:19:14,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,244 INFO L138 Inliner]: procedures = 279, calls = 72, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 326 [2024-10-17 22:19:14,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 22:19:14,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 22:19:14,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 22:19:14,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 22:19:14,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 22:19:14,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 22:19:14,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 22:19:14,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 22:19:14,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (1/1) ... [2024-10-17 22:19:14,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 22:19:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:14,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 22:19:14,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-17 22:19:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 22:19:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-17 22:19:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 22:19:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 22:19:14,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 22:19:14,385 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 22:19:14,527 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 22:19:14,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 22:19:14,898 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 22:19:14,899 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 22:19:15,087 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 22:19:15,087 INFO L314 CfgBuilder]: Removed 30 assume(true) statements. [2024-10-17 22:19:15,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:19:15 BoogieIcfgContainer [2024-10-17 22:19:15,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 22:19:15,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 22:19:15,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 22:19:15,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 22:19:15,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:19:13" (1/3) ... [2024-10-17 22:19:15,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ddcd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:19:15, skipping insertion in model container [2024-10-17 22:19:15,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:19:14" (2/3) ... [2024-10-17 22:19:15,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ddcd51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:19:15, skipping insertion in model container [2024-10-17 22:19:15,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:19:15" (3/3) ... [2024-10-17 22:19:15,096 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-10-17 22:19:15,112 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 22:19:15,112 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-17 22:19:15,112 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 22:19:15,183 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 22:19:15,232 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 22:19:15,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 22:19:15,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:15,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 22:19:15,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 22:19:15,334 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 22:19:15,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:15,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2024-10-17 22:19:15,361 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d37c953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 22:19:15,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 22:19:18,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:18,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:18,409 INFO L85 PathProgramCache]: Analyzing trace with hash -862267994, now seen corresponding path program 1 times [2024-10-17 22:19:18,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:18,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070858053] [2024-10-17 22:19:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-17 22:19:18,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:18,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070858053] [2024-10-17 22:19:18,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070858053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 22:19:18,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 22:19:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 22:19:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953203536] [2024-10-17 22:19:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 22:19:18,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 22:19:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 22:19:18,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 22:19:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:18,790 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:18,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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) [2024-10-17 22:19:18,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:20,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 22:19:20,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:20,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 619565194, now seen corresponding path program 1 times [2024-10-17 22:19:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:20,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611411340] [2024-10-17 22:19:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:20,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-17 22:19:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611411340] [2024-10-17 22:19:20,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611411340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 22:19:20,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 22:19:20,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 22:19:20,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041864154] [2024-10-17 22:19:20,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 22:19:20,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 22:19:20,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 22:19:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 22:19:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:20,463 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:20,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 22:19:20,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:20,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:20,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 22:19:20,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:20,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:20,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1622461472, now seen corresponding path program 1 times [2024-10-17 22:19:20,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:20,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726158925] [2024-10-17 22:19:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:20,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:20,821 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-17 22:19:20,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:20,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726158925] [2024-10-17 22:19:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726158925] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:20,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886295245] [2024-10-17 22:19:20,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:20,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:20,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:20,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:20,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 22:19:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:21,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 22:19:21,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 22:19:21,063 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 [2024-10-17 22:19:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-17 22:19:21,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 22:19:21,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886295245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 22:19:21,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 22:19:21,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-17 22:19:21,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478655852] [2024-10-17 22:19:21,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 22:19:21,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 22:19:21,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:21,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 22:19:21,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-17 22:19:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:21,079 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:21,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 22:19:21,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:21,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:21,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:21,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:21,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 22:19:21,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-17 22:19:21,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:22,081 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 29 treesize of output 23 [2024-10-17 22:19:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash 670189025, now seen corresponding path program 1 times [2024-10-17 22:19:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:22,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 22:19:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:22,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 22:19:22,441 INFO L349 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2024-10-17 22:19:22,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1273 treesize of output 1172 [2024-10-17 22:19:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash -638432220, now seen corresponding path program 1 times [2024-10-17 22:19:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:22,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 22:19:22,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:22,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 22:19:22,909 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 35 treesize of output 27 [2024-10-17 22:19:22,961 INFO L85 PathProgramCache]: Analyzing trace with hash 918017927, now seen corresponding path program 1 times [2024-10-17 22:19:22,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:22,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 22:19:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 22:19:23,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash 427204453, now seen corresponding path program 1 times [2024-10-17 22:19:23,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:23,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605972050] [2024-10-17 22:19:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:23,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-17 22:19:23,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:23,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605972050] [2024-10-17 22:19:23,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605972050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:23,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973574195] [2024-10-17 22:19:23,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:23,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:23,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:23,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:23,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 22:19:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:23,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 22:19:23,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 22:19:23,961 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-17 22:19:23,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 22:19:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-17 22:19:23,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973574195] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 22:19:23,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 22:19:23,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 22:19:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769325068] [2024-10-17 22:19:23,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 22:19:23,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 22:19:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 22:19:23,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 22:19:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:23,999 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:23,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 22:19:23,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:24,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:24,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 22:19:24,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-17 22:19:24,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:24,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:24,647 INFO L85 PathProgramCache]: Analyzing trace with hash -367774513, now seen corresponding path program 2 times [2024-10-17 22:19:24,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:24,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331164677] [2024-10-17 22:19:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2024-10-17 22:19:24,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:24,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331164677] [2024-10-17 22:19:24,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331164677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:24,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305688797] [2024-10-17 22:19:24,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 22:19:24,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:24,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:24,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 22:19:25,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 22:19:25,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 22:19:25,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 22:19:25,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 22:19:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-17 22:19:25,428 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 22:19:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-17 22:19:25,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305688797] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 22:19:25,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 22:19:25,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-10-17 22:19:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774388231] [2024-10-17 22:19:25,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 22:19:25,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 22:19:25,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:25,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 22:19:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-17 22:19:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:25,480 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:25,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 22:19:25,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:25,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:25,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:25,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:25,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:26,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-17 22:19:26,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 22:19:26,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:26,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:26,692 INFO L349 Elim1Store]: treesize reduction 12, result has 25.0 percent of original size [2024-10-17 22:19:26,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 705 treesize of output 652 [2024-10-17 22:19:28,781 INFO L85 PathProgramCache]: Analyzing trace with hash -502012011, now seen corresponding path program 1 times [2024-10-17 22:19:28,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:28,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-10-17 22:19:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:29,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-10-17 22:19:29,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 22:19:29,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 22:19:29,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-17 22:19:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:29,862 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:29,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 22:19:29,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:29,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:29,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:29,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:29,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-10-17 22:19:29,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-17 22:19:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 22:19:31,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 22:19:31,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,SelfDestructingSolverStorable12 [2024-10-17 22:19:31,107 INFO L414 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-10-17 22:19:31,108 INFO L312 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE (1/3) [2024-10-17 22:19:31,111 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 22:19:31,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 22:19:31,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:31,113 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) [2024-10-17 22:19:31,114 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 [2024-10-17 22:19:31,152 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 22:19:31,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:31,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2024-10-17 22:19:31,153 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d37c953, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 22:19:31,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 22:19:31,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:31,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:31,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1205386639, now seen corresponding path program 1 times [2024-10-17 22:19:31,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:31,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556511721] [2024-10-17 22:19:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:31,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:31,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:31,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556511721] [2024-10-17 22:19:31,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556511721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 22:19:31,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 22:19:31,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 22:19:31,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784938656] [2024-10-17 22:19:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 22:19:31,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 22:19:31,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 22:19:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 22:19:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:31,494 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:31,494 INFO L472 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) [2024-10-17 22:19:31,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:31,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-17 22:19:31,616 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:31,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:31,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1787118036, now seen corresponding path program 1 times [2024-10-17 22:19:31,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:31,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616381038] [2024-10-17 22:19:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:31,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:31,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:31,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:31,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616381038] [2024-10-17 22:19:31,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616381038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 22:19:31,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 22:19:31,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 22:19:31,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061248329] [2024-10-17 22:19:31,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 22:19:31,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 22:19:31,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:31,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 22:19:31,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 22:19:31,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:31,644 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:31,644 INFO L472 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) [2024-10-17 22:19:31,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:31,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-17 22:19:31,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:31,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -567688066, now seen corresponding path program 1 times [2024-10-17 22:19:31,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:31,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874562629] [2024-10-17 22:19:31,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:31,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:31,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:31,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874562629] [2024-10-17 22:19:31,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874562629] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:31,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096580900] [2024-10-17 22:19:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:31,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:31,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:31,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:31,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 22:19:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:32,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 22:19:32,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 22:19:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:32,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 22:19:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:32,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096580900] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 22:19:32,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 22:19:32,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 22:19:32,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47916894] [2024-10-17 22:19:32,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 22:19:32,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 22:19:32,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:32,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 22:19:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 22:19:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:32,342 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:32,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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) [2024-10-17 22:19:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:32,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:32,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 22:19:32,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-17 22:19:32,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:32,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:32,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1894095956, now seen corresponding path program 2 times [2024-10-17 22:19:32,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:32,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886106533] [2024-10-17 22:19:32,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:32,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 22:19:33,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:33,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886106533] [2024-10-17 22:19:33,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886106533] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:33,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796360127] [2024-10-17 22:19:33,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 22:19:33,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:33,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:33,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:33,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 22:19:33,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 22:19:33,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 22:19:33,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 22:19:33,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 22:19:33,471 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:33,471 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 22:19:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 22:19:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796360127] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 22:19:33,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 22:19:33,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-10-17 22:19:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401704987] [2024-10-17 22:19:33,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 22:19:33,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 22:19:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 22:19:33,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 22:19:33,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-17 22:19:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:33,524 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 22:19:33,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 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) [2024-10-17 22:19:33,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:33,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:33,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:33,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 22:19:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 22:19:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 22:19:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-17 22:19:34,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-17 22:19:34,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-17 22:19:34,496 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 22:19:34,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 22:19:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1475868983, now seen corresponding path program 3 times [2024-10-17 22:19:34,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 22:19:34,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727835223] [2024-10-17 22:19:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 22:19:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 22:19:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 22:19:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-17 22:19:35,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 22:19:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727835223] [2024-10-17 22:19:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727835223] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 22:19:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888535784] [2024-10-17 22:19:35,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 22:19:35,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 22:19:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 22:19:35,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 22:19:35,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15