/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 20:35:43,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 20:35:43,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 20:35:43,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-22 20:35:43,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-22 20:35:43,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-22 20:35:43,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-22 20:35:43,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-22 20:35:43,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-22 20:35:43,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-22 20:35:43,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-22 20:35:43,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-22 20:35:43,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 20:35:43,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 20:35:43,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 20:35:43,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 20:35:43,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 20:35:43,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 20:35:43,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 20:35:43,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 20:35:43,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 20:35:43,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 20:35:43,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 20:35:43,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 20:35:43,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-22 20:35:43,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 20:35:43,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 20:35:43,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 20:35:43,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf [2021-10-22 20:35:43,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 20:35:43,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 20:35:43,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 20:35:43,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 20:35:43,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 20:35:43,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 20:35:43,799 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 20:35:43,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 20:35:43,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 20:35:43,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 20:35:43,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 20:35:43,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-22 20:35:43,802 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 20:35:43,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 20:35:43,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 20:35:43,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 20:35:43,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-22 20:35:43,995 INFO L275 PluginConnector]: CDTParser initialized [2021-10-22 20:35:43,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-10-22 20:35:44,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698336503/598a42a0be984961b480123211ceeacf/FLAG9577c6c47 [2021-10-22 20:35:44,468 INFO L306 CDTParser]: Found 1 translation units. [2021-10-22 20:35:44,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-10-22 20:35:44,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698336503/598a42a0be984961b480123211ceeacf/FLAG9577c6c47 [2021-10-22 20:35:44,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/698336503/598a42a0be984961b480123211ceeacf [2021-10-22 20:35:44,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 20:35:44,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-22 20:35:44,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-22 20:35:44,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-22 20:35:44,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-22 20:35:44,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82275b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44, skipping insertion in model container [2021-10-22 20:35:44,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-22 20:35:44,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-22 20:35:44,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-22 20:35:44,765 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-10-22 20:35:44,770 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-10-22 20:35:44,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 20:35:44,779 INFO L203 MainTranslator]: Completed pre-run [2021-10-22 20:35:44,798 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-22 20:35:44,814 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-10-22 20:35:44,831 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-10-22 20:35:44,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-22 20:35:44,862 INFO L208 MainTranslator]: Completed translation [2021-10-22 20:35:44,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44 WrapperNode [2021-10-22 20:35:44,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-22 20:35:44,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 20:35:44,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 20:35:44,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 20:35:44,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 20:35:44,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 20:35:44,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 20:35:44,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 20:35:44,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 20:35:44,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 20:35:44,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 20:35:44,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 20:35:44,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (1/1) ... [2021-10-22 20:35:44,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 20:35:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 20:35:44,986 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) [2021-10-22 20:35:44,990 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 [2021-10-22 20:35:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-22 20:35:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-22 20:35:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-22 20:35:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-22 20:35:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-22 20:35:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 20:35:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 20:35:45,021 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 20:35:45,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 20:35:45,269 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-22 20:35:45,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:35:45 BoogieIcfgContainer [2021-10-22 20:35:45,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 20:35:45,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 20:35:45,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 20:35:45,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 20:35:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:35:44" (1/3) ... [2021-10-22 20:35:45,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab6a911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:35:45, skipping insertion in model container [2021-10-22 20:35:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:35:44" (2/3) ... [2021-10-22 20:35:45,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab6a911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:35:45, skipping insertion in model container [2021-10-22 20:35:45,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:35:45" (3/3) ... [2021-10-22 20:35:45,282 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-10-22 20:35:45,285 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 20:35:45,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 20:35:45,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-22 20:35:45,285 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 20:35:45,310 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,310 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,310 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,310 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,311 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,311 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,311 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,311 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,311 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,312 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,313 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,314 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,315 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,316 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,318 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,318 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,318 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,320 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,323 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,347 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-22 20:35:45,359 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 20:35:45,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 20:35:45,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 20:35:45,399 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) [2021-10-22 20:35:45,405 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 [2021-10-22 20:35:45,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2021-10-22 20:35:45,427 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 20:35:45,428 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-22 20:35:45,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:45,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1043015194, now seen corresponding path program 1 times [2021-10-22 20:35:45,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:45,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858805116] [2021-10-22 20:35:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:45,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:45,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:45,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858805116] [2021-10-22 20:35:45,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858805116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:45,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:45,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 20:35:45,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286841008] [2021-10-22 20:35:45,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-22 20:35:45,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:45,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-22 20:35:45,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-22 20:35:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,712 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:45,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-10-22 20:35:45,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 20:35:45,838 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:45,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1524073839, now seen corresponding path program 1 times [2021-10-22 20:35:45,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:45,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914988428] [2021-10-22 20:35:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:45,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-22 20:35:45,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:45,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914988428] [2021-10-22 20:35:45,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914988428] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:45,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:45,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:45,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526570928] [2021-10-22 20:35:45,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:45,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:45,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:45,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:45,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:45,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:45,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 20:35:45,967 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:45,973 INFO L82 PathProgramCache]: Analyzing trace with hash 114691688, now seen corresponding path program 1 times [2021-10-22 20:35:45,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:45,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239262663] [2021-10-22 20:35:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:45,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:46,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:46,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239262663] [2021-10-22 20:35:46,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239262663] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:46,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:46,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 20:35:46,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46406989] [2021-10-22 20:35:46,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 20:35:46,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:46,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 20:35:46,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 20:35:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,032 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:46,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:46,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-22 20:35:46,092 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:46,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:46,093 INFO L82 PathProgramCache]: Analyzing trace with hash 452036273, now seen corresponding path program 1 times [2021-10-22 20:35:46,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:46,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430434056] [2021-10-22 20:35:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:46,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:46,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:46,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430434056] [2021-10-22 20:35:46,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430434056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:46,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:46,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:46,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005034688] [2021-10-22 20:35:46,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:46,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:46,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:46,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,155 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:46,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:46,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-22 20:35:46,507 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash 962008491, now seen corresponding path program 2 times [2021-10-22 20:35:46,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:46,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305029709] [2021-10-22 20:35:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:46,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:46,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:46,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305029709] [2021-10-22 20:35:46,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305029709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:46,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:46,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:46,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915611812] [2021-10-22 20:35:46,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:46,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:46,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:46,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:46,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:46,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:46,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-22 20:35:46,715 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:46,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:46,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2010745231, now seen corresponding path program 1 times [2021-10-22 20:35:46,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:46,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069389286] [2021-10-22 20:35:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:46,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-10-22 20:35:46,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:46,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069389286] [2021-10-22 20:35:46,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069389286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:46,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:46,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:46,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742082191] [2021-10-22 20:35:46,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:46,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:46,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-22 20:35:46,864 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:46,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1696604026, now seen corresponding path program 1 times [2021-10-22 20:35:46,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:46,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660383054] [2021-10-22 20:35:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:46,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-10-22 20:35:46,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:46,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660383054] [2021-10-22 20:35:46,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660383054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:46,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:46,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:46,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820564549] [2021-10-22 20:35:46,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:46,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,921 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:46,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:46,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-22 20:35:47,046 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2077096953, now seen corresponding path program 1 times [2021-10-22 20:35:47,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148608810] [2021-10-22 20:35:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 20:35:47,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148608810] [2021-10-22 20:35:47,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148608810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-22 20:35:47,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671390469] [2021-10-22 20:35:47,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 20:35:47,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 20:35:47,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-22 20:35:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,099 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 20:35:47,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-22 20:35:47,187 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,187 INFO L82 PathProgramCache]: Analyzing trace with hash -773994460, now seen corresponding path program 1 times [2021-10-22 20:35:47,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572425946] [2021-10-22 20:35:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572425946] [2021-10-22 20:35:47,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572425946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337221352] [2021-10-22 20:35:47,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,227 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 20:35:47,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 20:35:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-22 20:35:47,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,242 INFO L82 PathProgramCache]: Analyzing trace with hash 154431388, now seen corresponding path program 1 times [2021-10-22 20:35:47,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504171776] [2021-10-22 20:35:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504171776] [2021-10-22 20:35:47,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504171776] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151728240] [2021-10-22 20:35:47,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,272 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 20:35:47,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-22 20:35:47,331 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash -548637084, now seen corresponding path program 1 times [2021-10-22 20:35:47,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533385906] [2021-10-22 20:35:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 20:35:47,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533385906] [2021-10-22 20:35:47,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533385906] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059986365] [2021-10-22 20:35:47,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,356 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2021-10-22 20:35:47,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 20:35:47,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-22 20:35:47,538 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was SAFE (1/3) [2021-10-22 20:35:47,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 20:35:47,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 20:35:47,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 20:35:47,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-22 20:35:47,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 20:35:47,577 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 20:35:47,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-22 20:35:47,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 20:35:47,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 20:35:47,633 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-10-22 20:35:47,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 20:35:47,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 20:35:47,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 20:35:47,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-10-22 20:35:47,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork0 ======== [2021-10-22 20:35:47,640 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 20:35:47,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-22 20:35:47,680 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,680 INFO L82 PathProgramCache]: Analyzing trace with hash 361580120, now seen corresponding path program 1 times [2021-10-22 20:35:47,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278802410] [2021-10-22 20:35:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278802410] [2021-10-22 20:35:47,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278802410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 20:35:47,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133579795] [2021-10-22 20:35:47,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-22 20:35:47,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-22 20:35:47,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-22 20:35:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,698 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2021-10-22 20:35:47,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-22 20:35:47,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1731752848, now seen corresponding path program 1 times [2021-10-22 20:35:47,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520593787] [2021-10-22 20:35:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-22 20:35:47,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520593787] [2021-10-22 20:35:47,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520593787] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053731007] [2021-10-22 20:35:47,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,773 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-10-22 20:35:47,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-22 20:35:47,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,787 INFO L82 PathProgramCache]: Analyzing trace with hash 521557891, now seen corresponding path program 1 times [2021-10-22 20:35:47,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667049535] [2021-10-22 20:35:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667049535] [2021-10-22 20:35:47,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667049535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 20:35:47,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525088317] [2021-10-22 20:35:47,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 20:35:47,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 20:35:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 20:35:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,804 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-10-22 20:35:47,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-22 20:35:47,818 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2082163476, now seen corresponding path program 1 times [2021-10-22 20:35:47,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565974509] [2021-10-22 20:35:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565974509] [2021-10-22 20:35:47,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565974509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392433000] [2021-10-22 20:35:47,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,852 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2021-10-22 20:35:47,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-22 20:35:47,863 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1964579205, now seen corresponding path program 1 times [2021-10-22 20:35:47,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534590435] [2021-10-22 20:35:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534590435] [2021-10-22 20:35:47,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534590435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 20:35:47,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182129024] [2021-10-22 20:35:47,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 20:35:47,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 20:35:47,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 20:35:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,889 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:47,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-22 20:35:47,962 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:47,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:47,962 INFO L82 PathProgramCache]: Analyzing trace with hash -998222573, now seen corresponding path program 1 times [2021-10-22 20:35:47,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:47,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570619486] [2021-10-22 20:35:47,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:47,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:47,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:47,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570619486] [2021-10-22 20:35:47,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570619486] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:47,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:47,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:47,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036975755] [2021-10-22 20:35:47,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:47,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,986 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:47,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:47,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-22 20:35:48,352 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,352 INFO L82 PathProgramCache]: Analyzing trace with hash -822567183, now seen corresponding path program 2 times [2021-10-22 20:35:48,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652850310] [2021-10-22 20:35:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:48,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652850310] [2021-10-22 20:35:48,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652850310] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:48,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351302179] [2021-10-22 20:35:48,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:48,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,377 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-22 20:35:48,404 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1165331936, now seen corresponding path program 1 times [2021-10-22 20:35:48,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269819964] [2021-10-22 20:35:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-22 20:35:48,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269819964] [2021-10-22 20:35:48,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269819964] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:48,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836007163] [2021-10-22 20:35:48,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:48,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:48,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,429 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-22 20:35:48,505 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1866878702, now seen corresponding path program 1 times [2021-10-22 20:35:48,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896731456] [2021-10-22 20:35:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 20:35:48,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896731456] [2021-10-22 20:35:48,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896731456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-22 20:35:48,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130123174] [2021-10-22 20:35:48,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 20:35:48,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 20:35:48,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-22 20:35:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,534 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-22 20:35:48,670 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,670 INFO L82 PathProgramCache]: Analyzing trace with hash -445328809, now seen corresponding path program 1 times [2021-10-22 20:35:48,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098119044] [2021-10-22 20:35:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:48,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098119044] [2021-10-22 20:35:48,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098119044] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:48,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298906635] [2021-10-22 20:35:48,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:48,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:48,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:48,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-22 20:35:48,712 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,714 INFO L82 PathProgramCache]: Analyzing trace with hash 681258939, now seen corresponding path program 3 times [2021-10-22 20:35:48,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331842753] [2021-10-22 20:35:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 20:35:48,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331842753] [2021-10-22 20:35:48,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331842753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:48,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467110483] [2021-10-22 20:35:48,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:48,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:48,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-10-22 20:35:48,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:48,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-22 20:35:48,823 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-22 20:35:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 20:35:48,823 INFO L82 PathProgramCache]: Analyzing trace with hash 500145915, now seen corresponding path program 1 times [2021-10-22 20:35:48,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 20:35:48,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011230772] [2021-10-22 20:35:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 20:35:48,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 20:35:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 20:35:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 20:35:48,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 20:35:48,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011230772] [2021-10-22 20:35:48,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011230772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 20:35:48,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 20:35:48,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 20:35:48,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780341891] [2021-10-22 20:35:48,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 20:35:48,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 20:35:48,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 20:35:48,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 20:35:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 20:35:48,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 20:35:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 20:35:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 20:35:48,982 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-22 20:35:48,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-22 20:35:48,984 INFO L308 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork0 was SAFE (3/3) [2021-10-22 20:35:48,984 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 20:35:48,984 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 20:35:48,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:35:48 BasicIcfg [2021-10-22 20:35:48,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 20:35:48,987 INFO L168 Benchmark]: Toolchain (without parser) took 4486.99 ms. Allocated memory was 189.8 MB in the beginning and 407.9 MB in the end (delta: 218.1 MB). Free memory was 130.9 MB in the beginning and 197.4 MB in the end (delta: -66.5 MB). Peak memory consumption was 151.8 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,987 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 189.8 MB. Free memory is still 149.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 20:35:48,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.32 ms. Allocated memory was 189.8 MB in the beginning and 306.2 MB in the end (delta: 116.4 MB). Free memory was 130.7 MB in the beginning and 266.2 MB in the end (delta: -135.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 306.2 MB. Free memory was 266.2 MB in the beginning and 264.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,988 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 306.2 MB. Free memory was 264.5 MB in the beginning and 263.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,988 INFO L168 Benchmark]: RCFGBuilder took 329.48 ms. Allocated memory is still 306.2 MB. Free memory was 263.0 MB in the beginning and 234.1 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,989 INFO L168 Benchmark]: TraceAbstraction took 3714.20 ms. Allocated memory was 306.2 MB in the beginning and 407.9 MB in the end (delta: 101.7 MB). Free memory was 233.6 MB in the beginning and 197.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 139.0 MB. Max. memory is 8.0 GB. [2021-10-22 20:35:48,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 189.8 MB. Free memory is still 149.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 361.32 ms. Allocated memory was 189.8 MB in the beginning and 306.2 MB in the end (delta: 116.4 MB). Free memory was 130.7 MB in the beginning and 266.2 MB in the end (delta: -135.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 306.2 MB. Free memory was 266.2 MB in the beginning and 264.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 306.2 MB. Free memory was 264.5 MB in the beginning and 263.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 329.48 ms. Allocated memory is still 306.2 MB. Free memory was 263.0 MB in the beginning and 234.1 MB in the end (delta: 28.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3714.20 ms. Allocated memory was 306.2 MB in the beginning and 407.9 MB in the end (delta: 101.7 MB). Free memory was 233.6 MB in the beginning and 197.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 139.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 51144, positive: 43200, positive conditional: 34581, positive unconditional: 8619, negative: 7944, negative conditional: 7854, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43810, positive: 43200, positive conditional: 0, positive unconditional: 43200, negative: 610, negative conditional: 0, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4881, positive: 4791, positive conditional: 0, positive unconditional: 4791, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4881, positive: 4789, positive conditional: 0, positive unconditional: 4789, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 137, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43810, positive: 38409, positive conditional: 0, positive unconditional: 38409, negative: 520, negative conditional: 0, negative unconditional: 520, unknown: 4881, unknown conditional: 0, unknown unconditional: 4881] , Statistics on independence cache: Total cache size (in pairs): 4881, Positive cache size: 4791, Positive conditional cache size: 0, Positive unconditional cache size: 4791, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90, Independence queries for same thread: 7334 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 300, Number of persistent set computation: 2284, Number of trivial persistent sets: 1851, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 51144, positive: 43200, positive conditional: 34581, positive unconditional: 8619, negative: 7944, negative conditional: 7854, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43810, positive: 43200, positive conditional: 0, positive unconditional: 43200, negative: 610, negative conditional: 0, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4881, positive: 4791, positive conditional: 0, positive unconditional: 4791, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4881, positive: 4789, positive conditional: 0, positive unconditional: 4789, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 92, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 137, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43810, positive: 38409, positive conditional: 0, positive unconditional: 38409, negative: 520, negative conditional: 0, negative unconditional: 520, unknown: 4881, unknown conditional: 0, unknown unconditional: 4881] , Statistics on independence cache: Total cache size (in pairs): 4881, Positive cache size: 4791, Positive conditional cache size: 0, Positive unconditional cache size: 4791, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90, Independence queries for same thread: 7334 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3238, positive: 3203, positive conditional: 265, positive unconditional: 2938, negative: 35, negative conditional: 16, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3222, positive: 3203, positive conditional: 0, positive unconditional: 3203, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2263, positive: 2244, positive conditional: 0, positive unconditional: 2244, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2263, positive: 2243, positive conditional: 0, positive unconditional: 2243, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3222, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2263, unknown conditional: 0, unknown unconditional: 2263] , Statistics on independence cache: Total cache size (in pairs): 2263, Positive cache size: 2244, Positive conditional cache size: 0, Positive unconditional cache size: 2244, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 16 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 46, Number of persistent set computation: 181, Number of trivial persistent sets: 160, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3238, positive: 3203, positive conditional: 265, positive unconditional: 2938, negative: 35, negative conditional: 16, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3222, positive: 3203, positive conditional: 0, positive unconditional: 3203, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2263, positive: 2244, positive conditional: 0, positive unconditional: 2244, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2263, positive: 2243, positive conditional: 0, positive unconditional: 2243, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3222, positive: 959, positive conditional: 0, positive unconditional: 959, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2263, unknown conditional: 0, unknown unconditional: 2263] , Statistics on independence cache: Total cache size (in pairs): 2263, Positive cache size: 2244, Positive conditional cache size: 0, Positive unconditional cache size: 2244, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Independence queries for same thread: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 57711, positive: 49725, positive conditional: 41716, positive unconditional: 8009, negative: 7986, negative conditional: 7900, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 50404, positive: 49725, positive conditional: 0, positive unconditional: 49725, negative: 679, negative conditional: 0, negative unconditional: 679, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5066, positive: 4980, positive conditional: 0, positive unconditional: 4980, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5066, positive: 4975, positive conditional: 0, positive unconditional: 4975, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 91, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 144, negative conditional: 0, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50404, positive: 44745, positive conditional: 0, positive unconditional: 44745, negative: 593, negative conditional: 0, negative unconditional: 593, unknown: 5066, unknown conditional: 0, unknown unconditional: 5066] , Statistics on independence cache: Total cache size (in pairs): 5066, Positive cache size: 4980, Positive conditional cache size: 0, Positive unconditional cache size: 4980, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Independence queries for same thread: 7307 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 233, Number of persistent set computation: 2544, Number of trivial persistent sets: 2052, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 57711, positive: 49725, positive conditional: 41716, positive unconditional: 8009, negative: 7986, negative conditional: 7900, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 50404, positive: 49725, positive conditional: 0, positive unconditional: 49725, negative: 679, negative conditional: 0, negative unconditional: 679, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5066, positive: 4980, positive conditional: 0, positive unconditional: 4980, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5066, positive: 4975, positive conditional: 0, positive unconditional: 4975, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 91, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 144, negative conditional: 0, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50404, positive: 44745, positive conditional: 0, positive unconditional: 44745, negative: 593, negative conditional: 0, negative unconditional: 593, unknown: 5066, unknown conditional: 0, unknown unconditional: 5066] , Statistics on independence cache: Total cache size (in pairs): 5066, Positive cache size: 4980, Positive conditional cache size: 0, Positive unconditional cache size: 4980, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Independence queries for same thread: 7307 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2142.7ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 1193.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.5ms SsaConstructionTime, 138.4ms SatisfiabilityAnalysisTime, 444.0ms InterpolantComputationTime, 972 NumberOfCodeBlocks, 972 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 961 ConstructedInterpolants, 0 QuantifiedInterpolants, 1190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 1004/1004 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 92.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 52.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1350.2ms, OverallIterations: 12, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 1016.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.5ms SsaConstructionTime, 36.0ms SatisfiabilityAnalysisTime, 216.6ms InterpolantComputationTime, 803 NumberOfCodeBlocks, 803 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 791 ConstructedInterpolants, 0 QuantifiedInterpolants, 1004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 102/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-22 20:35:49,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2021-10-22 20:35:49,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2021-10-22 20:35:49,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2021-10-22 20:35:49,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...