/usr/bin/java -Xmx16000000000 -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-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 01:17:47,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 01:17:47,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 01:17:47,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 01:17:47,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 01:17:47,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 01:17:47,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 01:17:47,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 01:17:47,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 01:17:47,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 01:17:47,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 01:17:47,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 01:17:47,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 01:17:47,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 01:17:47,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 01:17:47,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 01:17:47,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 01:17:47,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 01:17:47,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 01:17:47,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 01:17:47,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 01:17:47,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 01:17:47,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 01:17:47,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 01:17:47,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-14 01:17:47,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-14 01:17:47,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-14 01:17:47,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-14 01:17:47,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-14 01:17:47,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-14 01:17:47,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 01:17:47,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 01:17:47,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 01:17:47,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 01:17:47,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 01:17:47,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 01:17:47,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 01:17:47,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 01:17:47,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 01:17:47,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 01:17:47,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 01:17:47,106 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-NoLbe-Lockstep.epf [2021-11-14 01:17:47,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 01:17:47,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 01:17:47,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 01:17:47,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 01:17:47,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 01:17:47,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 01:17:47,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 01:17:47,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 01:17:47,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 01:17:47,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 01:17:47,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 01:17:47,136 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 01:17:47,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 01:17:47,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 01:17:47,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 01:17:47,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 01:17:47,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 01:17:47,347 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 01:17:47,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2021-11-14 01:17:47,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac46811d/551980c85dba4018954df4d47cd5ee23/FLAG230fe44c3 [2021-11-14 01:17:47,775 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 01:17:47,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2021-11-14 01:17:47,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac46811d/551980c85dba4018954df4d47cd5ee23/FLAG230fe44c3 [2021-11-14 01:17:48,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac46811d/551980c85dba4018954df4d47cd5ee23 [2021-11-14 01:17:48,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 01:17:48,186 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 01:17:48,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 01:17:48,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 01:17:48,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 01:17:48,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe7d39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48, skipping insertion in model container [2021-11-14 01:17:48,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 01:17:48,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 01:17:48,459 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-ext/47_ticket_lock_hc_backoff_vs.i[30336,30349] [2021-11-14 01:17:48,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 01:17:48,472 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 01:17:48,500 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-ext/47_ticket_lock_hc_backoff_vs.i[30336,30349] [2021-11-14 01:17:48,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 01:17:48,525 INFO L208 MainTranslator]: Completed translation [2021-11-14 01:17:48,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48 WrapperNode [2021-11-14 01:17:48,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 01:17:48,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 01:17:48,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 01:17:48,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 01:17:48,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 01:17:48,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 01:17:48,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 01:17:48,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 01:17:48,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 01:17:48,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 01:17:48,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 01:17:48,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 01:17:48,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (1/1) ... [2021-11-14 01:17:48,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 01:17:48,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:48,613 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) [2021-11-14 01:17:48,631 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 [2021-11-14 01:17:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-14 01:17:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 01:17:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 01:17:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 01:17:48,652 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 01:17:48,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 01:17:48,911 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-14 01:17:48,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 01:17:48 BoogieIcfgContainer [2021-11-14 01:17:48,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 01:17:48,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 01:17:48,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 01:17:48,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 01:17:48,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 01:17:48" (1/3) ... [2021-11-14 01:17:48,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 01:17:48, skipping insertion in model container [2021-11-14 01:17:48,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 01:17:48" (2/3) ... [2021-11-14 01:17:48,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 01:17:48, skipping insertion in model container [2021-11-14 01:17:48,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 01:17:48" (3/3) ... [2021-11-14 01:17:48,918 INFO L111 eAbstractionObserver]: Analyzing ICFG 47_ticket_lock_hc_backoff_vs.i [2021-11-14 01:17:48,921 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 01:17:48,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 01:17:48,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-14 01:17:48,921 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 01:17:48,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,945 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,945 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:48,947 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 01:17:48,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 01:17:48,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:48,978 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) [2021-11-14 01:17:48,986 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 [2021-11-14 01:17:49,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-14 01:17:49,005 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-14 01:17:49,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 01:17:49,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1812169389, now seen corresponding path program 1 times [2021-11-14 01:17:49,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:49,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694802875] [2021-11-14 01:17:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:49,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-14 01:17:49,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:49,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694802875] [2021-11-14 01:17:49,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694802875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:17:49,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 01:17:49,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 01:17:49,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933939117] [2021-11-14 01:17:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:17:49,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 01:17:49,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:49,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 01:17:49,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 01:17:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,270 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:49,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-14 01:17:49,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 01:17:49,317 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:49,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash 258312603, now seen corresponding path program 1 times [2021-11-14 01:17:49,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:49,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648562961] [2021-11-14 01:17:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:49,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-14 01:17:49,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:49,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648562961] [2021-11-14 01:17:49,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648562961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:17:49,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 01:17:49,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 01:17:49,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304411481] [2021-11-14 01:17:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:17:49,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 01:17:49,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 01:17:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 01:17:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,434 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:49,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 01:17:49,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:49,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 01:17:49,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:49,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:49,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1253998039, now seen corresponding path program 1 times [2021-11-14 01:17:49,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:49,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640446277] [2021-11-14 01:17:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:49,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-14 01:17:49,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:49,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640446277] [2021-11-14 01:17:49,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640446277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:17:49,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 01:17:49,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-14 01:17:49,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489335781] [2021-11-14 01:17:49,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:17:49,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-14 01:17:49,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-14 01:17:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-14 01:17:49,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:49,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-14 01:17:49,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:49,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:49,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 01:17:49,836 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:49,837 INFO L85 PathProgramCache]: Analyzing trace with hash 629026770, now seen corresponding path program 2 times [2021-11-14 01:17:49,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:49,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548318712] [2021-11-14 01:17:49,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:49,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 65 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-14 01:17:50,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:50,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548318712] [2021-11-14 01:17:50,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548318712] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:17:50,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686439302] [2021-11-14 01:17:50,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 01:17:50,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:50,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:50,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:17:50,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 01:17:50,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 01:17:50,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 01:17:50,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-14 01:17:50,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:17:50,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-14 01:17:50,498 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-14 01:17:50,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-14 01:17:50,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-14 01:17:50,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-14 01:17:50,665 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-14 01:17:50,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16 [2021-11-14 01:17:50,727 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-14 01:17:50,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 01:17:50,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686439302] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:17:50,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 01:17:50,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2021-11-14 01:17:50,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718903832] [2021-11-14 01:17:50,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:17:50,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 01:17:50,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:50,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 01:17:50,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2021-11-14 01:17:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:50,731 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:50,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 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) [2021-11-14 01:17:50,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:50,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:50,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:50,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:17:51,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-14 01:17:51,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-14 01:17:51,228 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash -400999458, now seen corresponding path program 1 times [2021-11-14 01:17:51,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:51,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559770764] [2021-11-14 01:17:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:51,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 141 proven. 7 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2021-11-14 01:17:51,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:51,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559770764] [2021-11-14 01:17:51,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559770764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:17:51,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402852215] [2021-11-14 01:17:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:51,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:51,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:51,431 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:17:51,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 01:17:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:51,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-14 01:17:51,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:17:51,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-14 01:17:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 214 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-14 01:17:51,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 01:17:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 214 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-14 01:17:52,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402852215] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 01:17:52,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 01:17:52,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 14 [2021-11-14 01:17:52,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058830408] [2021-11-14 01:17:52,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 01:17:52,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-14 01:17:52,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:52,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-14 01:17:52,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-14 01:17:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:52,171 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:52,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.928571428571429) internal successors, (167), 14 states have internal predecessors, (167), 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) [2021-11-14 01:17:52,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:52,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:52,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:52,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:17:52,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:17:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 01:17:52,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-14 01:17:52,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:52,656 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2091643746, now seen corresponding path program 1 times [2021-11-14 01:17:52,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:52,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665187568] [2021-11-14 01:17:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:52,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 316 proven. 23 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-14 01:17:52,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:52,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665187568] [2021-11-14 01:17:52,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665187568] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:17:52,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600794112] [2021-11-14 01:17:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:52,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:52,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:17:52,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-14 01:17:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:53,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-14 01:17:53,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:17:53,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-14 01:17:53,412 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-14 01:17:53,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2021-11-14 01:17:53,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-14 01:17:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 416 proven. 63 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-14 01:17:53,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 01:17:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2021-11-14 01:17:54,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600794112] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 01:17:54,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 01:17:54,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 14] total 29 [2021-11-14 01:17:54,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207355527] [2021-11-14 01:17:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:17:54,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-14 01:17:54,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:17:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-14 01:17:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2021-11-14 01:17:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:54,076 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:17:54,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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) [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 01:17:54,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:17:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 01:17:54,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-14 01:17:54,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:54,558 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:17:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:17:54,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1343324892, now seen corresponding path program 2 times [2021-11-14 01:17:54,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:17:54,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058486661] [2021-11-14 01:17:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:17:54,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:17:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:17:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 477 proven. 46 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-11-14 01:17:54,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:17:54,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058486661] [2021-11-14 01:17:54,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058486661] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:17:54,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760549729] [2021-11-14 01:17:54,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 01:17:54,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:17:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:17:54,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:17:54,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 01:17:54,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 01:17:54,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 01:17:54,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-14 01:17:54,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:17:55,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-14 01:17:55,175 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-14 01:17:55,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-14 01:17:55,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-14 01:17:55,401 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-14 01:17:55,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 21 [2021-11-14 01:17:55,530 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:17:55,545 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-14 01:17:55,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-11-14 01:17:55,604 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-14 01:17:55,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-14 01:17:55,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-14 01:17:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 715 proven. 99 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-14 01:17:55,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 01:17:56,803 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int)) (not (= (mod (select (select (store |c_#memory_int| |c_thr1Thread1of1ForFork0_~#l~0#1.base| (store (select |c_#memory_int| |c_thr1Thread1of1ForFork0_~#l~0#1.base|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2021-11-14 01:18:01,190 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (= .cse0 (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296)) (< .cse0 0)))) is different from false [2021-11-14 01:18:03,310 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (< .cse0 0) (= .cse0 (mod (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296))))) is different from false [2021-11-14 01:18:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 732 proven. 4 refuted. 0 times theorem prover too weak. 361 trivial. 26 not checked. [2021-11-14 01:18:04,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760549729] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 01:18:04,561 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 01:18:04,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 32 [2021-11-14 01:18:04,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767419325] [2021-11-14 01:18:04,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 01:18:04,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-14 01:18:04,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:18:04,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-14 01:18:04,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=735, Unknown=4, NotChecked=168, Total=992 [2021-11-14 01:18:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:04,562 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:18:04,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.28125) internal successors, (297), 32 states have internal predecessors, (297), 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) [2021-11-14 01:18:04,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:04,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:04,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:04,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:04,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:04,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 01:18:04,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:07,229 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base|) 1) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (< .cse0 0) (= .cse0 (mod (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296))))) (= (select |c_#valid| |c_ULTIMATE.start_thr1_~#l~0#1.base|) 1) (not (= |c_thr1Thread1of1ForFork0_~#l~0#1.base| |c_ULTIMATE.start_thr1_~#l~0#1.base|)) (= |c_ULTIMATE.start_thr1_~#l~0#1.offset| 0)) is different from false [2021-11-14 01:18:09,252 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base|) 1) (= |c_ULTIMATE.start_thr1_#t~mem3#1| (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|)) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (< .cse0 0) (= .cse0 (mod (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296))))) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse1 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse1) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (= .cse1 (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296)) (< .cse1 0)))) (= (select |c_#valid| |c_ULTIMATE.start_thr1_~#l~0#1.base|) 1) (not (= |c_thr1Thread1of1ForFork0_~#l~0#1.base| |c_ULTIMATE.start_thr1_~#l~0#1.base|)) (= |c_ULTIMATE.start_thr1_~#l~0#1.offset| 0)) is different from false [2021-11-14 01:18:11,276 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base|) 1) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (< .cse0 0) (= .cse0 (mod (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296))))) (not (= (mod c_~s~0 4294967296) (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296))) (= (select |c_#valid| |c_ULTIMATE.start_thr1_~#l~0#1.base|) 1) (not (= |c_thr1Thread1of1ForFork0_~#l~0#1.base| |c_ULTIMATE.start_thr1_~#l~0#1.base|)) (= |c_ULTIMATE.start_thr1_~#l~0#1.offset| 0)) is different from false [2021-11-14 01:18:13,305 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base|) 1) (= |c_ULTIMATE.start_thr1_#t~mem3#1| (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|)) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse0 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse0) (not (= (select (store |c_#valid| |c_thr1Thread1of1ForFork0_~#l~0#1.base| 0) |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) 0)) (= .cse0 (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296)) (< .cse0 0)))) (= (select |c_#valid| |c_ULTIMATE.start_thr1_~#l~0#1.base|) 1) (not (= |c_thr1Thread1of1ForFork0_~#l~0#1.base| |c_ULTIMATE.start_thr1_~#l~0#1.base|)) (= |c_ULTIMATE.start_thr1_~#l~0#1.offset| 0)) is different from false [2021-11-14 01:18:15,317 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~s~0 4294967296))) (and (not (= .cse0 (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296))) (= (select |c_#valid| |c_ULTIMATE.start_thr1_~#l~0#1.base|) 1) (forall ((|v_thr1Thread1of1ForFork0_~#l~0#1.base_38| Int) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| Int) (~t~0 Int) (aux_div_aux_mod_~s~0_21_32 Int)) (let ((.cse1 (+ (* 4294967296 aux_div_aux_mod_~s~0_21_32) (mod (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38| (store (select |c_#memory_int| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset_18| ~t~0)) |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296)))) (or (<= 4294967296 .cse1) (= .cse1 (mod |c_ULTIMATE.start_thr1_#t~mem3#1| 4294967296)) (< .cse1 0) (not (= 0 (select |c_#valid| |v_thr1Thread1of1ForFork0_~#l~0#1.base_38|)))))) (not (= .cse0 (mod (select (select |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base|) |c_ULTIMATE.start_thr1_~#l~0#1.offset|) 4294967296))) (exists ((|thr1Thread1of1ForFork0_~#l~0#1.base| Int)) (= (select |c_#valid| |thr1Thread1of1ForFork0_~#l~0#1.base|) 0)) (= |c_ULTIMATE.start_thr1_~#l~0#1.offset| 0))) is different from false [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 01:18:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-14 01:18:15,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-14 01:18:15,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:15,943 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:18:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:18:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2133069543, now seen corresponding path program 3 times [2021-11-14 01:18:15,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:18:15,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844845837] [2021-11-14 01:18:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:18:15,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:18:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:18:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 845 proven. 87 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2021-11-14 01:18:16,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:18:16,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844845837] [2021-11-14 01:18:16,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844845837] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:18:16,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201724654] [2021-11-14 01:18:16,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-14 01:18:16,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:16,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:18:16,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:18:16,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 01:18:16,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-14 01:18:16,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 01:18:16,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-14 01:18:16,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:18:16,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-14 01:18:17,080 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-14 01:18:17,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-11-14 01:18:17,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-14 01:18:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1878 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 1587 trivial. 0 not checked. [2021-11-14 01:18:17,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 01:18:17,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201724654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 01:18:17,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 01:18:17,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 25 [2021-11-14 01:18:17,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605800114] [2021-11-14 01:18:17,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 01:18:17,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-14 01:18:17,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:18:17,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-14 01:18:17,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2021-11-14 01:18:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:17,165 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:18:17,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-11-14 01:18:17,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 01:18:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-14 01:18:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 01:18:17,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-14 01:18:17,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:17,704 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:18:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:18:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash 99504504, now seen corresponding path program 4 times [2021-11-14 01:18:17,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:18:17,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693571037] [2021-11-14 01:18:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:18:17,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:18:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:18:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 1025 proven. 87 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2021-11-14 01:18:18,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:18:18,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693571037] [2021-11-14 01:18:18,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693571037] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:18:18,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139799291] [2021-11-14 01:18:18,068 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-14 01:18:18,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:18,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:18:18,069 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:18:18,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-14 01:18:18,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-14 01:18:18,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 01:18:18,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-14 01:18:18,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:18:18,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-11-14 01:18:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 788 proven. 1 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2021-11-14 01:18:18,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 01:18:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 788 proven. 1 refuted. 0 times theorem prover too weak. 1680 trivial. 0 not checked. [2021-11-14 01:18:19,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139799291] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 01:18:19,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 01:18:19,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2021-11-14 01:18:19,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389499265] [2021-11-14 01:18:19,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 01:18:19,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-14 01:18:19,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 01:18:19,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-14 01:18:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-11-14 01:18:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:19,316 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 01:18:19,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.444444444444445) internal successors, (206), 18 states have internal predecessors, (206), 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) [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 01:18:19,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-14 01:18:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 01:18:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-14 01:18:19,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-14 01:18:20,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:20,028 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 01:18:20,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 01:18:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash 548975584, now seen corresponding path program 5 times [2021-11-14 01:18:20,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 01:18:20,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978233510] [2021-11-14 01:18:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 01:18:20,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 01:18:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 01:18:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 823 proven. 378 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2021-11-14 01:18:20,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 01:18:20,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978233510] [2021-11-14 01:18:20,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978233510] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 01:18:20,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960741545] [2021-11-14 01:18:20,482 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-14 01:18:20,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 01:18:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 01:18:20,483 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 01:18:20,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-14 01:18:25,194 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-11-14 01:18:25,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 01:18:25,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-14 01:18:25,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 01:18:25,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-14 01:18:25,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-14 01:18:25,572 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-14 01:18:25,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-14 01:18:25,733 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-14 01:18:25,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-11-14 01:18:25,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 01:18:25,770 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2021-11-14 01:18:25,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-14 01:18:25,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-14 01:18:25,971 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Shadow problem: [|thr1Thread1of1ForFork0_~#l~0#1.base|] at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Context.constructChildContextForQuantifiedFormula(Context.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:293) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:150) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:167) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminateLight(PartialQuantifierElimination.java:111) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminateCompat(PartialQuantifierElimination.java:127) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.constructQuantifiedFormula(TermDomainOperationProvider.java:115) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:104) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:197) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-14 01:18:25,974 INFO L158 Benchmark]: Toolchain (without parser) took 37788.24ms. Allocated memory was 373.3MB in the beginning and 570.4MB in the end (delta: 197.1MB). Free memory was 317.4MB in the beginning and 374.0MB in the end (delta: -56.6MB). Peak memory consumption was 144.1MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,974 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory was 335.9MB in the beginning and 335.8MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 01:18:25,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.30ms. Allocated memory was 373.3MB in the beginning and 474.0MB in the end (delta: 100.7MB). Free memory was 317.2MB in the beginning and 438.5MB in the end (delta: -121.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.54ms. Allocated memory is still 474.0MB. Free memory was 438.5MB in the beginning and 436.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,975 INFO L158 Benchmark]: Boogie Preprocessor took 17.63ms. Allocated memory is still 474.0MB. Free memory was 436.4MB in the beginning and 435.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,975 INFO L158 Benchmark]: RCFGBuilder took 337.95ms. Allocated memory is still 474.0MB. Free memory was 435.4MB in the beginning and 417.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,975 INFO L158 Benchmark]: TraceAbstraction took 37060.00ms. Allocated memory was 474.0MB in the beginning and 570.4MB in the end (delta: 96.5MB). Free memory was 417.6MB in the beginning and 374.0MB in the end (delta: 43.6MB). Peak memory consumption was 144.3MB. Max. memory is 16.0GB. [2021-11-14 01:18:25,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 373.3MB. Free memory was 335.9MB in the beginning and 335.8MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 339.30ms. Allocated memory was 373.3MB in the beginning and 474.0MB in the end (delta: 100.7MB). Free memory was 317.2MB in the beginning and 438.5MB in the end (delta: -121.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.54ms. Allocated memory is still 474.0MB. Free memory was 438.5MB in the beginning and 436.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.63ms. Allocated memory is still 474.0MB. Free memory was 436.4MB in the beginning and 435.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 337.95ms. Allocated memory is still 474.0MB. Free memory was 435.4MB in the beginning and 417.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 37060.00ms. Allocated memory was 474.0MB in the beginning and 570.4MB in the end (delta: 96.5MB). Free memory was 417.6MB in the beginning and 374.0MB in the end (delta: 43.6MB). Peak memory consumption was 144.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Shadow problem: [|thr1Thread1of1ForFork0_~#l~0#1.base|] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Shadow problem: [|thr1Thread1of1ForFork0_~#l~0#1.base|]: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Context.constructChildContextForQuantifiedFormula(Context.java:117) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-14 01:18:25,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-14 01:18:26,208 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...