./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/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 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 21:49:19,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 21:49:19,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 21:49:19,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 21:49:19,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 21:49:19,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 21:49:19,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 21:49:19,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 21:49:19,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 21:49:19,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 21:49:19,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 21:49:19,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 21:49:19,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 21:49:19,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 21:49:19,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 21:49:19,993 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 21:49:19,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 21:49:19,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 21:49:19,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 21:49:19,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 21:49:19,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 21:49:19,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 21:49:19,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 21:49:19,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 21:49:19,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 21:49:19,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 21:49:19,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 21:49:19,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 21:49:19,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 21:49:19,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 21:49:19,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 21:49:19,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 21:49:19,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 21:49:19,999 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 21:49:19,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 21:49:19,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 21:49:19,999 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 21:49:20,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 21:49:20,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 21:49:20,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 21:49:20,001 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 21:49:20,001 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 21:49:20,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 21:49:20,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 21:49:20,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 21:49:20,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 21:49:20,307 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 21:49:20,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2024-10-17 21:49:21,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 21:49:21,881 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 21:49:21,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2024-10-17 21:49:21,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d059b2a6c/a354a589d7934b619abd999afd71189c/FLAG4d6087c8a [2024-10-17 21:49:22,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d059b2a6c/a354a589d7934b619abd999afd71189c [2024-10-17 21:49:22,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 21:49:22,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 21:49:22,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 21:49:22,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 21:49:22,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 21:49:22,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:22,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74286c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22, skipping insertion in model container [2024-10-17 21:49:22,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:22,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 21:49:22,732 WARN L247 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] [2024-10-17 21:49:22,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 21:49:22,766 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 21:49:22,844 WARN L247 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] [2024-10-17 21:49:22,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 21:49:22,929 INFO L204 MainTranslator]: Completed translation [2024-10-17 21:49:22,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22 WrapperNode [2024-10-17 21:49:22,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 21:49:22,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 21:49:22,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 21:49:22,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 21:49:22,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:22,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,078 INFO L138 Inliner]: procedures = 396, calls = 190, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3758 [2024-10-17 21:49:23,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 21:49:23,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 21:49:23,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 21:49:23,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 21:49:23,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 21:49:23,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 21:49:23,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 21:49:23,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 21:49:23,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (1/1) ... [2024-10-17 21:49:23,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 21:49:23,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:23,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 21:49:23,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 21:49:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 21:49:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 21:49:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 21:49:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 21:49:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-17 21:49:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2024-10-17 21:49:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2024-10-17 21:49:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2024-10-17 21:49:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2024-10-17 21:49:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2024-10-17 21:49:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2024-10-17 21:49:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 21:49:23,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 21:49:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-17 21:49:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-17 21:49:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 21:49:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2024-10-17 21:49:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2024-10-17 21:49:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2024-10-17 21:49:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2024-10-17 21:49:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2024-10-17 21:49:23,321 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2024-10-17 21:49:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2024-10-17 21:49:23,376 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2024-10-17 21:49:23,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 21:49:23,379 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 21:49:23,744 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 21:49:23,746 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 21:49:26,245 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 21:49:26,246 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 21:49:28,199 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 21:49:28,199 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-17 21:49:28,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:49:28 BoogieIcfgContainer [2024-10-17 21:49:28,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 21:49:28,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 21:49:28,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 21:49:28,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 21:49:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 09:49:22" (1/3) ... [2024-10-17 21:49:28,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdcab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:49:28, skipping insertion in model container [2024-10-17 21:49:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:22" (2/3) ... [2024-10-17 21:49:28,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdcab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:49:28, skipping insertion in model container [2024-10-17 21:49:28,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:49:28" (3/3) ... [2024-10-17 21:49:28,206 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2024-10-17 21:49:28,219 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 21:49:28,219 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-17 21:49:28,219 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 21:49:28,716 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-17 21:49:28,753 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 21:49:28,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 21:49:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:28,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 21:49:28,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 21:49:29,032 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 21:49:29,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:29,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == instrPop4Thread1of1ForFork0 ======== [2024-10-17 21:49:29,049 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@570b588f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 21:49:29,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 21:50:35,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:35,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1734679537, now seen corresponding path program 1 times [2024-10-17 21:50:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:35,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715801353] [2024-10-17 21:50:35,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:35,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:36,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:36,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715801353] [2024-10-17 21:50:36,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715801353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:36,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:36,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 21:50:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025351160] [2024-10-17 21:50:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:36,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 21:50:36,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:36,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 21:50:36,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 21:50:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:36,167 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:36,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:36,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:36,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 21:50:36,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:36,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -717346591, now seen corresponding path program 1 times [2024-10-17 21:50:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:36,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881068952] [2024-10-17 21:50:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:36,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:36,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:36,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881068952] [2024-10-17 21:50:36,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881068952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:36,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:36,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 21:50:36,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427379643] [2024-10-17 21:50:36,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:36,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 21:50:36,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:36,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 21:50:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 21:50:36,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:36,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:36,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:36,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:36,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:37,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 21:50:37,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:37,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash -296163285, now seen corresponding path program 1 times [2024-10-17 21:50:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:37,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463714199] [2024-10-17 21:50:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:37,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:37,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:37,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463714199] [2024-10-17 21:50:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463714199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:37,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:37,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 21:50:37,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970167376] [2024-10-17 21:50:37,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:37,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 21:50:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:37,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 21:50:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 21:50:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:37,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:37,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:37,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:37,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-17 21:50:37,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:37,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 781932493, now seen corresponding path program 1 times [2024-10-17 21:50:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202615857] [2024-10-17 21:50:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:38,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:38,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:38,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202615857] [2024-10-17 21:50:38,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202615857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:38,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:38,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 21:50:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381485099] [2024-10-17 21:50:38,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:38,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 21:50:38,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:38,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 21:50:38,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 21:50:38,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:38,295 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:38,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:38,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:38,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:38,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:38,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:39,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:39,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-17 21:50:39,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:39,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash -302643026, now seen corresponding path program 1 times [2024-10-17 21:50:39,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:39,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693874348] [2024-10-17 21:50:39,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:39,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:40,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:40,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693874348] [2024-10-17 21:50:40,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693874348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:40,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:40,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 21:50:40,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713118037] [2024-10-17 21:50:40,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:40,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 21:50:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 21:50:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 21:50:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:40,354 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:40,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:40,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:41,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-17 21:50:41,252 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:41,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:41,252 INFO L85 PathProgramCache]: Analyzing trace with hash 520216527, now seen corresponding path program 1 times [2024-10-17 21:50:41,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:41,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411068305] [2024-10-17 21:50:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:41,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:46,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:46,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411068305] [2024-10-17 21:50:46,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411068305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:46,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:46,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-17 21:50:46,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677024077] [2024-10-17 21:50:46,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:46,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 21:50:46,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:46,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 21:50:46,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-17 21:50:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:46,234 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:46,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:46,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:50:47,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-17 21:50:47,178 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:47,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1802556331, now seen corresponding path program 1 times [2024-10-17 21:50:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:47,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520442421] [2024-10-17 21:50:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:52,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520442421] [2024-10-17 21:50:52,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520442421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:52,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-17 21:50:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935800176] [2024-10-17 21:50:52,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:52,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-17 21:50:52,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:52,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-17 21:50:52,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-10-17 21:50:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:52,010 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:52,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.526315789473684) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:50:52,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:53,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:50:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:50:53,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-17 21:50:53,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:50:53,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:53,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1862479043, now seen corresponding path program 1 times [2024-10-17 21:50:53,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:53,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884439832] [2024-10-17 21:50:53,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:53,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:50:59,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884439832] [2024-10-17 21:50:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884439832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:59,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:59,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-17 21:50:59,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508295775] [2024-10-17 21:50:59,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:59,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-17 21:50:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:59,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-17 21:50:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-10-17 21:50:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:59,747 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:59,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.625) internal successors, (87), 23 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:50:59,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:02,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-17 21:51:02,327 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:51:02,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:51:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 465411469, now seen corresponding path program 1 times [2024-10-17 21:51:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:51:02,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492067234] [2024-10-17 21:51:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:51:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:51:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:51:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:51:06,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:51:06,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492067234] [2024-10-17 21:51:06,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492067234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:51:06,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:51:06,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-17 21:51:06,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197508980] [2024-10-17 21:51:06,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:51:06,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-17 21:51:06,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:51:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-17 21:51:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-10-17 21:51:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:06,955 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:51:06,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 24 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:06,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:06,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:12,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:12,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:12,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-17 21:51:12,472 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:51:12,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:51:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash 759505142, now seen corresponding path program 1 times [2024-10-17 21:51:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:51:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275219991] [2024-10-17 21:51:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:51:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:51:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:51:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:51:17,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:51:17,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275219991] [2024-10-17 21:51:17,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275219991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:51:17,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:51:17,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-10-17 21:51:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730756545] [2024-10-17 21:51:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:51:17,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-17 21:51:17,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:51:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-17 21:51:17,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2024-10-17 21:51:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:17,602 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:51:17,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:51:17,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:17,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:17,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:17,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:17,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:17,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:25,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-17 21:51:25,767 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:51:26,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:51:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash -259415307, now seen corresponding path program 1 times [2024-10-17 21:51:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:51:26,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359253441] [2024-10-17 21:51:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:51:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:51:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:51:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:51:29,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:51:29,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359253441] [2024-10-17 21:51:29,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359253441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:51:29,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:51:29,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-17 21:51:29,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198064369] [2024-10-17 21:51:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:51:29,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-17 21:51:29,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:51:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-17 21:51:29,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-10-17 21:51:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:29,232 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:51:29,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:29,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:29,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-17 21:51:33,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-17 21:51:33,846 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:51:37,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:51:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash 548078403, now seen corresponding path program 1 times [2024-10-17 21:51:37,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:51:37,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042358206] [2024-10-17 21:51:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:51:37,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:51:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:51:38,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:51:38,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:51:38,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042358206] [2024-10-17 21:51:38,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042358206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:51:38,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:51:38,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 21:51:38,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829408661] [2024-10-17 21:51:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:51:38,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 21:51:38,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:51:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 21:51:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 21:51:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:38,171 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:51:38,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-10-17 21:51:38,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-17 21:51:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:49,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-17 21:51:49,150 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:51:49,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:51:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1589247897, now seen corresponding path program 1 times [2024-10-17 21:51:49,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:51:49,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155495458] [2024-10-17 21:51:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:51:49,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:51:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:51:53,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 21:51:53,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:51:53,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155495458] [2024-10-17 21:51:53,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155495458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:51:53,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:51:53,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-17 21:51:53,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949145075] [2024-10-17 21:51:53,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:51:53,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-17 21:51:53,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:51:53,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-17 21:51:53,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-17 21:51:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:51:53,856 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:51:53,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.888888888888889) internal successors, (106), 18 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:51:53,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:51:53,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:51:53,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:51:53,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-10-17 21:51:53,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:51:53,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-17 21:52:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-17 21:52:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-17 21:52:04,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-17 21:52:04,886 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION === [instrPop4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 21:52:05,677 INFO L349 Elim1Store]: treesize reduction 180, result has 33.1 percent of original size [2024-10-17 21:52:05,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 4786 treesize of output 3738 [2024-10-17 21:52:05,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-17 21:52:05,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:05,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1862 treesize of output 1800 [2024-10-17 21:52:05,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-10-17 21:52:06,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2024-10-17 21:52:06,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:06,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2024-10-17 21:52:07,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:07,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 213 treesize of output 219 [2024-10-17 21:52:08,703 INFO L349 Elim1Store]: treesize reduction 35, result has 74.6 percent of original size [2024-10-17 21:52:08,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 3583 treesize of output 3041 [2024-10-17 21:52:08,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:08,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2126 treesize of output 2058 [2024-10-17 21:52:10,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 437 [2024-10-17 21:52:11,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 637 treesize of output 585 [2024-10-17 21:52:15,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 444 treesize of output 424 [2024-10-17 21:52:17,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 93 [2024-10-17 21:52:17,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 270 [2024-10-17 21:52:18,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 863 treesize of output 839 [2024-10-17 21:52:19,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:19,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 730 treesize of output 724 [2024-10-17 21:52:25,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1192 treesize of output 1152 [2024-10-17 21:52:30,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:30,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 773 treesize of output 779 [2024-10-17 21:52:34,691 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-10-17 21:52:35,026 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2024-10-17 21:52:35,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 835 treesize of output 1 [2024-10-17 21:52:35,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:35,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 83 [2024-10-17 21:52:35,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:35,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 94 [2024-10-17 21:52:35,416 INFO L349 Elim1Store]: treesize reduction 242, result has 0.4 percent of original size [2024-10-17 21:52:35,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 1428 treesize of output 1 [2024-10-17 21:52:35,744 INFO L349 Elim1Store]: treesize reduction 62, result has 74.5 percent of original size [2024-10-17 21:52:35,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 2368 treesize of output 1956 [2024-10-17 21:52:37,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:37,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 2076 treesize of output 1708 Killed by 15