/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 16:38:45,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 16:38:46,024 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 16:38:46,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 16:38:46,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 16:38:46,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 16:38:46,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 16:38:46,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 16:38:46,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 16:38:46,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 16:38:46,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 16:38:46,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 16:38:46,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 16:38:46,048 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 16:38:46,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 16:38:46,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 16:38:46,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 16:38:46,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 16:38:46,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 16:38:46,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 16:38:46,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 16:38:46,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 16:38:46,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 16:38:46,052 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 16:38:46,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 16:38:46,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 16:38:46,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 16:38:46,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 16:38:46,054 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 16:38:46,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 16:38:46,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 16:38:46,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 16:38:46,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 16:38:46,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 16:38:46,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 16:38:46,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 16:38:46,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 16:38:46,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 16:38:46,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 16:38:46,057 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 16:38:46,057 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2023-09-07 16:38:46,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 16:38:46,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 16:38:46,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 16:38:46,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 16:38:46,268 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 16:38:46,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2023-09-07 16:38:47,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 16:38:47,630 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 16:38:47,631 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2023-09-07 16:38:47,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cac7aff0/9a7b7b93790244349d6fe7696b1430ba/FLAGc5232dda2 [2023-09-07 16:38:47,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cac7aff0/9a7b7b93790244349d6fe7696b1430ba [2023-09-07 16:38:47,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 16:38:47,657 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 16:38:47,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 16:38:47,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 16:38:47,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 16:38:47,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28251b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47, skipping insertion in model container [2023-09-07 16:38:47,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,694 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 16:38:47,837 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2023-09-07 16:38:47,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 16:38:47,856 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 16:38:47,882 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2023-09-07 16:38:47,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 16:38:47,898 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 16:38:47,898 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 16:38:47,903 INFO L206 MainTranslator]: Completed translation [2023-09-07 16:38:47,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47 WrapperNode [2023-09-07 16:38:47,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 16:38:47,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 16:38:47,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 16:38:47,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 16:38:47,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,955 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 376 [2023-09-07 16:38:47,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 16:38:47,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 16:38:47,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 16:38:47,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 16:38:47,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:47,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:48,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:48,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 16:38:48,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 16:38:48,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 16:38:48,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 16:38:48,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (1/1) ... [2023-09-07 16:38:48,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 16:38:48,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:38:48,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 16:38:48,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 16:38:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 16:38:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-07 16:38:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 16:38:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 16:38:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 16:38:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-07 16:38:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 16:38:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 16:38:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 16:38:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 16:38:48,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 16:38:48,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 16:38:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 16:38:48,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 16:38:48,062 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 16:38:48,159 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 16:38:48,160 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 16:38:48,612 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 16:38:48,742 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 16:38:48,742 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-09-07 16:38:48,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:38:48 BoogieIcfgContainer [2023-09-07 16:38:48,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 16:38:48,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 16:38:48,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 16:38:48,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 16:38:48,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:38:47" (1/3) ... [2023-09-07 16:38:48,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2058860d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:38:48, skipping insertion in model container [2023-09-07 16:38:48,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:38:47" (2/3) ... [2023-09-07 16:38:48,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2058860d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:38:48, skipping insertion in model container [2023-09-07 16:38:48,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:38:48" (3/3) ... [2023-09-07 16:38:48,759 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-09-07 16:38:48,766 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 16:38:48,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 16:38:48,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 16:38:48,776 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 16:38:48,881 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-07 16:38:48,935 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:38:48,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 16:38:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:38:48,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 16:38:48,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 16:38:48,983 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:38:48,990 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-07 16:38:48,990 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-07 16:38:48,990 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-07 16:38:48,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 16:38:49,001 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@aae53e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 16:38:49,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 16:38:59,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:38:59,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:38:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash 328713762, now seen corresponding path program 1 times [2023-09-07 16:38:59,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:38:59,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774576501] [2023-09-07 16:38:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:38:59,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:38:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:38:59,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 16:38:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:38:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774576501] [2023-09-07 16:38:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774576501] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:38:59,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:38:59,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 16:38:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553078302] [2023-09-07 16:38:59,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:38:59,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 16:38:59,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:38:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 16:38:59,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 16:38:59,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:38:59,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:38:59,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 106.5) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:38:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:04,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 16:39:04,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:04,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash -557007242, now seen corresponding path program 1 times [2023-09-07 16:39:04,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:04,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711458764] [2023-09-07 16:39:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:04,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 16:39:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:05,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711458764] [2023-09-07 16:39:05,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711458764] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:39:05,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:39:05,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-07 16:39:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341343310] [2023-09-07 16:39:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:39:05,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-07 16:39:05,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-07 16:39:05,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-07 16:39:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:05,499 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:05,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 10 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:05,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:05,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:16,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 16:39:16,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:16,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:16,932 INFO L85 PathProgramCache]: Analyzing trace with hash -483262900, now seen corresponding path program 1 times [2023-09-07 16:39:16,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:16,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562577352] [2023-09-07 16:39:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:16,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 16:39:17,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:17,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562577352] [2023-09-07 16:39:17,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562577352] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:39:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:39:17,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-07 16:39:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407023863] [2023-09-07 16:39:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:39:17,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 16:39:17,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 16:39:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-09-07 16:39:17,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:17,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:17,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.666666666666668) internal successors, (231), 9 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:17,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:17,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:17,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:31,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-07 16:39:31,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:31,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 174293234, now seen corresponding path program 1 times [2023-09-07 16:39:31,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:31,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055357624] [2023-09-07 16:39:31,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:31,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 16:39:31,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055357624] [2023-09-07 16:39:31,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055357624] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 16:39:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674667016] [2023-09-07 16:39:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:31,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:39:31,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:39:31,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 16:39:31,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 16:39:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:31,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 16:39:31,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 16:39:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 16:39:32,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 16:39:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 16:39:32,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674667016] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-07 16:39:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-09-07 16:39:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-09-07 16:39:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532977237] [2023-09-07 16:39:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:39:32,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 16:39:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 16:39:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-09-07 16:39:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:32,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:32,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 7 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:32,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:32,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:32,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:32,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:33,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-07 16:39:33,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-09-07 16:39:33,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:33,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash 422993600, now seen corresponding path program 1 times [2023-09-07 16:39:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367958107] [2023-09-07 16:39:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 16:39:33,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:33,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367958107] [2023-09-07 16:39:33,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367958107] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 16:39:33,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386337553] [2023-09-07 16:39:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:33,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:39:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:39:33,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 16:39:33,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 16:39:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:33,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-07 16:39:33,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 16:39:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 16:39:34,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 16:39:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 16:39:34,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386337553] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 16:39:34,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 16:39:34,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-09-07 16:39:34,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736512585] [2023-09-07 16:39:34,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 16:39:34,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-09-07 16:39:34,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:34,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-09-07 16:39:34,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2023-09-07 16:39:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:34,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:34,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.72) internal successors, (368), 25 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:34,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:34,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:34,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:34,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:34,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-07 16:39:36,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-07 16:39:36,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:39:36,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:36,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1541895206, now seen corresponding path program 2 times [2023-09-07 16:39:36,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:36,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698059627] [2023-09-07 16:39:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-07 16:39:36,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:36,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698059627] [2023-09-07 16:39:36,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698059627] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 16:39:36,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477535070] [2023-09-07 16:39:36,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 16:39:36,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:39:36,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:39:36,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 16:39:36,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 16:39:36,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 16:39:36,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 16:39:36,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-07 16:39:36,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 16:39:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-07 16:39:37,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 16:39:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-07 16:39:37,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477535070] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 16:39:37,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 16:39:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-09-07 16:39:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038818009] [2023-09-07 16:39:37,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 16:39:37,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-09-07 16:39:37,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:37,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-09-07 16:39:37,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2023-09-07 16:39:37,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:37,612 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:37,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.833333333333334) internal successors, (380), 24 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:37,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:37,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:37,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:37,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:37,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-09-07 16:39:37,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 16:39:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 16:39:51,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 16:39:51,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:39:51,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:39:51,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:39:51,870 INFO L85 PathProgramCache]: Analyzing trace with hash -758047528, now seen corresponding path program 3 times [2023-09-07 16:39:51,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:39:51,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412305511] [2023-09-07 16:39:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:39:51,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:39:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:39:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-09-07 16:39:52,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:39:52,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412305511] [2023-09-07 16:39:52,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412305511] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 16:39:52,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 16:39:52,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-09-07 16:39:52,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108710283] [2023-09-07 16:39:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 16:39:52,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-09-07 16:39:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:39:52,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-09-07 16:39:52,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-09-07 16:39:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:52,712 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:39:52,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.714285714285715) internal successors, (276), 14 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 16:39:52,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 16:40:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-09-07 16:40:02,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-07 16:40:02,698 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:40:02,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:40:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash -197775165, now seen corresponding path program 1 times [2023-09-07 16:40:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:40:02,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745103476] [2023-09-07 16:40:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:40:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:40:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:40:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-09-07 16:40:03,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:40:03,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745103476] [2023-09-07 16:40:03,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745103476] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 16:40:03,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053171330] [2023-09-07 16:40:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:40:03,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:40:03,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:40:03,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 16:40:03,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 16:40:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:40:03,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-07 16:40:03,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 16:40:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-09-07 16:40:03,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 16:40:03,512 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-09-07 16:40:03,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053171330] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 16:40:03,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 16:40:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 16 [2023-09-07 16:40:03,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621046895] [2023-09-07 16:40:03,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 16:40:03,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-09-07 16:40:03,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 16:40:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-09-07 16:40:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-09-07 16:40:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:03,520 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 16:40:03,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.625) internal successors, (282), 16 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-07 16:40:03,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:03,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:40:03,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:40:03,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:40:03,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-09-07 16:40:03,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-09-07 16:40:03,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2023-09-07 16:40:03,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 16:40:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-07 16:40:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-07 16:40:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 16:40:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-09-07 16:40:20,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-09-07 16:40:20,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-09-07 16:40:20,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-07 16:40:20,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 16:40:21,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:40:21,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 16:40:21,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 16:40:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash -468612726, now seen corresponding path program 1 times [2023-09-07 16:40:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 16:40:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347115355] [2023-09-07 16:40:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:40:21,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 16:40:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 16:40:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-07 16:40:53,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 16:40:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347115355] [2023-09-07 16:40:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347115355] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 16:40:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436945002] [2023-09-07 16:40:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 16:40:53,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 16:40:53,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 16:40:53,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 16:40:53,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process