./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.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 0a77b23de3110741cf9e339cfb9f72e965f6bc6bc082cff0044fedc6c4916cfb --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 04:59:20,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 04:59:20,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 04:59:20,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 04:59:20,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 04:59:20,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 04:59:20,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 04:59:20,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 04:59:20,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 04:59:20,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 04:59:20,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 04:59:20,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 04:59:20,259 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 04:59:20,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 04:59:20,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 04:59:20,261 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 04:59:20,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 04:59:20,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 04:59:20,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 04:59:20,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 04:59:20,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 04:59:20,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 04:59:20,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 04:59:20,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 04:59:20,263 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 04:59:20,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 04:59:20,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 04:59:20,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 04:59:20,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 04:59:20,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:59:20,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 04:59:20,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 04:59:20,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 04:59:20,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 04:59:20,266 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 04:59:20,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 04:59:20,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 04:59:20,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 04:59:20,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 04:59:20,267 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 04:59:20,267 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 04:59:20,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a77b23de3110741cf9e339cfb9f72e965f6bc6bc082cff0044fedc6c4916cfb [2023-11-23 04:59:20,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 04:59:20,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 04:59:20,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 04:59:20,459 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 04:59:20,459 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 04:59:20,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-11-23 04:59:21,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 04:59:22,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 04:59:22,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-11-23 04:59:22,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5e8993bdc/6f33841b375743b0a1afe3f39d8d2672/FLAGe10fe50d0 [2023-11-23 04:59:22,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5e8993bdc/6f33841b375743b0a1afe3f39d8d2672 [2023-11-23 04:59:22,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 04:59:22,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 04:59:22,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 04:59:22,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 04:59:22,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 04:59:22,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:22,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dd3d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22, skipping insertion in model container [2023-11-23 04:59:22,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:22,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 04:59:22,736 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63614,63627] [2023-11-23 04:59:22,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:59:22,769 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 04:59:22,814 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63614,63627] [2023-11-23 04:59:22,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 04:59:22,892 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 04:59:22,892 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 04:59:22,898 INFO L206 MainTranslator]: Completed translation [2023-11-23 04:59:22,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22 WrapperNode [2023-11-23 04:59:22,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 04:59:22,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 04:59:22,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 04:59:22,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 04:59:22,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:22,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,086 INFO L138 Inliner]: procedures = 397, calls = 218, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3786 [2023-11-23 04:59:23,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 04:59:23,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 04:59:23,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 04:59:23,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 04:59:23,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 04:59:23,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 04:59:23,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 04:59:23,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 04:59:23,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (1/1) ... [2023-11-23 04:59:23,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 04:59:23,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:59:23,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 04:59:23,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 04:59:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 04:59:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 04:59:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 04:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 04:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 04:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 04:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-11-23 04:59:23,322 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-11-23 04:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-11-23 04:59:23,323 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-11-23 04:59:23,324 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 04:59:23,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 04:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 04:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-11-23 04:59:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-11-23 04:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-11-23 04:59:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-11-23 04:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-11-23 04:59:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-11-23 04:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-11-23 04:59:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-11-23 04:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 04:59:23,329 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 04:59:23,660 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 04:59:23,661 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 04:59:26,306 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 04:59:28,684 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 04:59:28,684 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 04:59:28,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:28 BoogieIcfgContainer [2023-11-23 04:59:28,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 04:59:28,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 04:59:28,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 04:59:28,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 04:59:28,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:59:22" (1/3) ... [2023-11-23 04:59:28,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535fda27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:28, skipping insertion in model container [2023-11-23 04:59:28,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:59:22" (2/3) ... [2023-11-23 04:59:28,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535fda27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:28, skipping insertion in model container [2023-11-23 04:59:28,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:28" (3/3) ... [2023-11-23 04:59:28,693 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-11-23 04:59:28,702 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 04:59:28,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 04:59:28,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-23 04:59:28,710 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 04:59:29,352 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 04:59:29,402 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:59:29,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 04:59:29,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 04:59:29,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 04:59:29,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-23 04:59:29,443 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 04:59:29,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == instrPush2Thread1of1ForFork2 ======== [2023-11-23 04:59:29,459 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;@63870913, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 04:59:29,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 05:03:11,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:11,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 326780611, now seen corresponding path program 1 times [2023-11-23 05:03:11,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:11,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216241020] [2023-11-23 05:03:11,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:11,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:12,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:12,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216241020] [2023-11-23 05:03:12,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216241020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:12,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:12,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 05:03:12,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615151959] [2023-11-23 05:03:12,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:12,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 05:03:12,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:12,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 05:03:12,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 05:03:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:12,476 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:12,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:12,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 05:03:12,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:12,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash 194570555, now seen corresponding path program 1 times [2023-11-23 05:03:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:12,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761830213] [2023-11-23 05:03:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:13,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:13,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:13,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761830213] [2023-11-23 05:03:13,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761830213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:13,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:13,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 05:03:13,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327158300] [2023-11-23 05:03:13,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:13,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 05:03:13,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:13,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 05:03:13,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 05:03:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:13,176 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:13,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:13,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 05:03:13,389 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:13,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:13,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2030902887, now seen corresponding path program 1 times [2023-11-23 05:03:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815138247] [2023-11-23 05:03:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:13,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:13,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:13,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815138247] [2023-11-23 05:03:13,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815138247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:13,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:13,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 05:03:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202256114] [2023-11-23 05:03:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 05:03:13,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 05:03:13,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 05:03:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:13,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:13,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:13,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 05:03:13,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:13,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:13,786 INFO L85 PathProgramCache]: Analyzing trace with hash 882234219, now seen corresponding path program 1 times [2023-11-23 05:03:13,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:13,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690345906] [2023-11-23 05:03:13,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:13,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:17,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:17,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690345906] [2023-11-23 05:03:17,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690345906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:17,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:17,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 05:03:17,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236578491] [2023-11-23 05:03:17,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:17,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 05:03:17,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:17,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 05:03:17,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-23 05:03:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:17,744 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:17,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:17,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:25,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:03:25,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 05:03:25,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:25,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:25,678 INFO L85 PathProgramCache]: Analyzing trace with hash 139765861, now seen corresponding path program 1 times [2023-11-23 05:03:25,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:25,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876116463] [2023-11-23 05:03:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:29,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:29,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876116463] [2023-11-23 05:03:29,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876116463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:29,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:29,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 05:03:29,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261689774] [2023-11-23 05:03:29,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:29,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 05:03:29,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:29,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 05:03:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-23 05:03:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:29,265 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:29,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:29,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:29,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:29,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:29,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:03:29,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:03:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:03:46,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 05:03:46,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:03:46,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:03:46,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1734424383, now seen corresponding path program 1 times [2023-11-23 05:03:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:03:46,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141957525] [2023-11-23 05:03:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:03:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:03:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:03:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:03:52,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:03:52,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141957525] [2023-11-23 05:03:52,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141957525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:03:52,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:03:52,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-11-23 05:03:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276707167] [2023-11-23 05:03:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:03:52,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 05:03:52,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:03:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 05:03:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-11-23 05:03:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:03:52,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:03:52,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:03:52,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:04:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:04:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:04:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:04:16,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 05:04:16,217 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:04:16,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:04:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2067418115, now seen corresponding path program 1 times [2023-11-23 05:04:16,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:04:16,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561205379] [2023-11-23 05:04:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:04:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:04:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:04:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:04:22,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:04:22,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561205379] [2023-11-23 05:04:22,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561205379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:04:22,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:04:22,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-23 05:04:22,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150255273] [2023-11-23 05:04:22,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:04:22,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 05:04:22,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:04:22,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 05:04:22,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2023-11-23 05:04:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:04:22,542 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:04:22,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:04:22,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:05:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:05:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:05:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:05:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:05:27,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 05:05:27,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:05:27,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:05:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1956879308, now seen corresponding path program 1 times [2023-11-23 05:05:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:05:27,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528712423] [2023-11-23 05:05:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:05:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:05:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:05:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:05:27,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:05:27,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528712423] [2023-11-23 05:05:27,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528712423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:05:27,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:05:27,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 05:05:27,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750061564] [2023-11-23 05:05:27,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:05:27,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 05:05:27,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:05:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 05:05:27,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 05:05:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:05:27,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:05:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:05:27,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:05:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:05:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:05:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:05:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:05:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:05:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:05:35,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 05:05:35,782 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:05:35,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:05:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2076930355, now seen corresponding path program 1 times [2023-11-23 05:05:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:05:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114125830] [2023-11-23 05:05:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:05:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:05:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:05:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:05:41,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:05:41,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114125830] [2023-11-23 05:05:41,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114125830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:05:41,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:05:41,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-11-23 05:05:41,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52371936] [2023-11-23 05:05:41,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:05:41,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 05:05:41,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:05:41,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 05:05:41,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-11-23 05:05:41,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:05:41,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:05:41,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:05:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:05:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:05:41,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:05:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:05:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:05:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:05:41,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:06:17,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:06:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:06:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:06:17,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 05:06:17,324 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:06:17,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:06:17,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1229482002, now seen corresponding path program 1 times [2023-11-23 05:06:17,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:06:17,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228578988] [2023-11-23 05:06:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:06:17,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:06:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:06:21,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:06:21,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:06:21,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228578988] [2023-11-23 05:06:21,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228578988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:06:21,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:06:21,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-23 05:06:21,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983698860] [2023-11-23 05:06:21,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:06:21,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 05:06:21,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:06:21,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 05:06:21,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-11-23 05:06:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:06:21,919 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:06:21,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.5) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:06:21,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:07:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:07:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:43,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:07:43,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 05:07:43,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:07:43,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:07:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash -289164111, now seen corresponding path program 1 times [2023-11-23 05:07:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:07:43,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914780426] [2023-11-23 05:07:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:07:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:07:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:07:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:07:44,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:07:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914780426] [2023-11-23 05:07:44,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914780426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:07:44,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:07:44,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 05:07:44,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125079604] [2023-11-23 05:07:44,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:07:44,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 05:07:44,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:07:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 05:07:44,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 05:07:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:07:44,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:07:44,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:07:44,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:44,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:44,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:07:44,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:07:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:51,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 05:07:51,532 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:07:51,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:07:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -550321744, now seen corresponding path program 1 times [2023-11-23 05:07:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:07:51,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130480021] [2023-11-23 05:07:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:07:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:07:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:07:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:07:55,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:07:55,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130480021] [2023-11-23 05:07:55,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130480021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:07:55,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:07:55,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 05:07:55,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557294651] [2023-11-23 05:07:55,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:07:55,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 05:07:55,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:07:55,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 05:07:55,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-23 05:07:55,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:07:55,290 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:07:55,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.4375) internal successors, (87), 15 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:07:55,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:08:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:08:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:08:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:08:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:08:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:08:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:08:33,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 05:08:33,780 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPush2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 05:08:33,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:08:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash -577914427, now seen corresponding path program 1 times [2023-11-23 05:08:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:08:33,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746588894] [2023-11-23 05:08:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:08:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:08:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:08:39,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:08:39,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:08:39,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746588894] [2023-11-23 05:08:39,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746588894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:08:39,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:08:39,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-11-23 05:08:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929723011] [2023-11-23 05:08:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:08:39,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 05:08:39,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:08:39,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 05:08:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2023-11-23 05:08:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:08:39,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:08:39,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.56) internal successors, (89), 25 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:08:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-23 05:08:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15