/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 23:25:51,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 23:25:51,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 23:25:51,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 23:25:51,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 23:25:51,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 23:25:51,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 23:25:51,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 23:25:51,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 23:25:51,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 23:25:51,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 23:25:51,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 23:25:51,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 23:25:51,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 23:25:51,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 23:25:51,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 23:25:51,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 23:25:51,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 23:25:51,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 23:25:51,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 23:25:51,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 23:25:51,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 23:25:51,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 23:25:51,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 23:25:51,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 23:25:51,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 23:25:51,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 23:25:51,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 23:25:51,204 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-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-15 23:25:51,232 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 23:25:51,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 23:25:51,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 23:25:51,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 23:25:51,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 23:25:51,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 23:25:51,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 23:25:51,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 23:25:51,234 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 23:25:51,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 23:25:51,235 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 23:25:51,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 23:25:51,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 23:25:51,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 23:25:51,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 23:25:51,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 23:25:51,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 23:25:51,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 23:25:51,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 23:25:51,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 23:25:51,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 23:25:51,238 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-15 23:25:51,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 23:25:51,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 23:25:51,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-15 23:25:51,239 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-15 23:25:51,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 23:25:51,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 23:25:51,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 23:25:51,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 23:25:51,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 23:25:51,467 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 23:25:51,468 INFO L432 ainManager$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 [2022-03-15 23:25:51,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7d2c9f1/3c80db3cb1bf4abdbaa8891e45e30c83/FLAG2cdf7f506 [2022-03-15 23:25:51,946 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 23:25:51,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2022-03-15 23:25:51,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7d2c9f1/3c80db3cb1bf4abdbaa8891e45e30c83/FLAG2cdf7f506 [2022-03-15 23:25:51,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7d2c9f1/3c80db3cb1bf4abdbaa8891e45e30c83 [2022-03-15 23:25:51,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 23:25:51,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 23:25:51,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 23:25:51,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 23:25:51,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 23:25:51,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 11:25:51" (1/1) ... [2022-03-15 23:25:51,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adb68f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:51, skipping insertion in model container [2022-03-15 23:25:51,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 11:25:51" (1/1) ... [2022-03-15 23:25:52,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 23:25:52,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 23:25:52,266 WARN L230 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] [2022-03-15 23:25:52,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 23:25:52,278 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 23:25:52,309 WARN L230 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] [2022-03-15 23:25:52,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 23:25:52,338 INFO L208 MainTranslator]: Completed translation [2022-03-15 23:25:52,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52 WrapperNode [2022-03-15 23:25:52,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 23:25:52,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 23:25:52,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 23:25:52,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 23:25:52,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,399 INFO L137 Inliner]: procedures = 169, calls = 18, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 108 [2022-03-15 23:25:52,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 23:25:52,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 23:25:52,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 23:25:52,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 23:25:52,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 23:25:52,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 23:25:52,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 23:25:52,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 23:25:52,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (1/1) ... [2022-03-15 23:25:52,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 23:25:52,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:25:52,487 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) [2022-03-15 23:25:52,500 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 [2022-03-15 23:25:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 23:25:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-03-15 23:25:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-03-15 23:25:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 23:25:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 23:25:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 23:25:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 23:25:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 23:25:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 23:25:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 23:25:52,523 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 23:25:52,639 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 23:25:52,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 23:25:52,834 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 23:25:52,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 23:25:52,882 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-15 23:25:52,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 11:25:52 BoogieIcfgContainer [2022-03-15 23:25:52,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 23:25:52,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 23:25:52,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 23:25:52,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 23:25:52,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 11:25:51" (1/3) ... [2022-03-15 23:25:52,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6eb609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 11:25:52, skipping insertion in model container [2022-03-15 23:25:52,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 11:25:52" (2/3) ... [2022-03-15 23:25:52,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6eb609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 11:25:52, skipping insertion in model container [2022-03-15 23:25:52,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 11:25:52" (3/3) ... [2022-03-15 23:25:52,894 INFO L111 eAbstractionObserver]: Analyzing ICFG 47_ticket_lock_hc_backoff_vs.i [2022-03-15 23:25:52,898 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 23:25:52,898 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 23:25:52,898 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-15 23:25:52,899 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 23:25:52,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,937 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,942 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,943 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,944 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,945 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,945 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,945 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,946 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,947 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,954 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,956 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,957 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,958 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,961 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,962 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,962 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,962 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,962 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,963 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,964 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,964 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,964 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 23:25:52,966 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 23:25:53,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-15 23:25:53,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:25:53,035 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) [2022-03-15 23:25:53,057 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 [2022-03-15 23:25:53,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 23:25:53,079 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, mLazyFiniteAutomaton=true, 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, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-15 23:25:53,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 23:25:53,195 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 34 transitions and produced 35 states. [2022-03-15 23:25:53,197 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:25:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:25:53,207 INFO L85 PathProgramCache]: Analyzing trace with hash 253472294, now seen corresponding path program 1 times [2022-03-15 23:25:53,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:25:53,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970072612] [2022-03-15 23:25:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:25:53,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:25:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:25:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 23:25:53,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:25:53,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970072612] [2022-03-15 23:25:53,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970072612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 23:25:53,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 23:25:53,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 23:25:53,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699638929] [2022-03-15 23:25:53,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 23:25:53,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 23:25:53,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 23:25:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 23:25:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 23:25:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:25:53,414 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-15 23:25:53,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2022-03-15 23:25:53,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:25:53,503 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 41 transitions and produced 42 states. [2022-03-15 23:25:53,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:25:53,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 23:25:53,508 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:25:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:25:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash 686024596, now seen corresponding path program 1 times [2022-03-15 23:25:53,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:25:53,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472513706] [2022-03-15 23:25:53,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:25:53,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:25:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:25:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 23:25:53,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:25:53,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472513706] [2022-03-15 23:25:53,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472513706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 23:25:53,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 23:25:53,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 23:25:53,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935096897] [2022-03-15 23:25:53,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 23:25:53,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 23:25:53,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 23:25:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 23:25:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 23:25:53,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:25:53,655 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-15 23:25:53,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 23:25:53,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:25:53,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:26:15,354 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 38833 transitions and produced 25402 states. [2022-03-15 23:26:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:26:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:26:15,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 23:26:15,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:26:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:26:15,358 INFO L85 PathProgramCache]: Analyzing trace with hash 165401471, now seen corresponding path program 1 times [2022-03-15 23:26:15,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:26:15,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536853851] [2022-03-15 23:26:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:26:15,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:28:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:29:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 487867 backedges. 34390 proven. 230 refuted. 0 times theorem prover too weak. 453247 trivial. 0 not checked. [2022-03-15 23:29:03,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:29:03,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536853851] [2022-03-15 23:29:03,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536853851] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 23:29:03,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047837396] [2022-03-15 23:29:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:29:03,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:29:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:29:03,471 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) [2022-03-15 23:29:03,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 23:29:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:29:06,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 15599 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 23:29:06,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 23:29:11,730 INFO L387 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 [2022-03-15 23:29:11,946 INFO L134 CoverageAnalysis]: Checked inductivity of 487867 backedges. 28903 proven. 1 refuted. 0 times theorem prover too weak. 458963 trivial. 0 not checked. [2022-03-15 23:29:11,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 23:29:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 487867 backedges. 28903 proven. 1 refuted. 0 times theorem prover too weak. 458963 trivial. 0 not checked. [2022-03-15 23:29:15,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047837396] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 23:29:15,837 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 23:29:15,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2022-03-15 23:29:15,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902529494] [2022-03-15 23:29:15,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 23:29:15,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-15 23:29:15,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 23:29:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-15 23:29:15,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-03-15 23:29:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:29:15,848 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-15 23:29:15,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.764705882352942) internal successors, (183), 17 states have internal predecessors, (183), 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) [2022-03-15 23:29:15,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:29:15,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:29:15,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:29:25,959 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 21424 transitions and produced 17818 states. [2022-03-15 23:29:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:29:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:29:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 23:29:26,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 23:29:26,179 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,SelfDestructingSolverStorable2 [2022-03-15 23:29:26,179 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:29:26,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:29:26,180 INFO L85 PathProgramCache]: Analyzing trace with hash -699925097, now seen corresponding path program 1 times [2022-03-15 23:29:26,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:29:26,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967458314] [2022-03-15 23:29:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:29:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:30:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:30:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 405560 backedges. 60749 proven. 874 refuted. 0 times theorem prover too weak. 343937 trivial. 0 not checked. [2022-03-15 23:30:52,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:30:52,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967458314] [2022-03-15 23:30:52,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967458314] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 23:30:52,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284601053] [2022-03-15 23:30:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:30:52,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:30:52,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:30:52,041 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) [2022-03-15 23:30:52,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 23:30:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:30:54,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 14380 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 23:30:54,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 23:30:58,687 INFO L387 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 [2022-03-15 23:30:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 405560 backedges. 59770 proven. 1 refuted. 0 times theorem prover too weak. 345789 trivial. 0 not checked. [2022-03-15 23:30:59,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 23:31:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 405560 backedges. 59770 proven. 1 refuted. 0 times theorem prover too weak. 345789 trivial. 0 not checked. [2022-03-15 23:31:02,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284601053] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 23:31:02,596 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 23:31:02,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2022-03-15 23:31:02,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505350618] [2022-03-15 23:31:02,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 23:31:02,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 23:31:02,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 23:31:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 23:31:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-03-15 23:31:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:31:02,602 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-15 23:31:02,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 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) [2022-03-15 23:31:02,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:31:02,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:31:02,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-15 23:31:02,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:31:06,207 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7803 transitions and produced 7092 states. [2022-03-15 23:31:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:31:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:31:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-15 23:31:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-15 23:31:06,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 23:31:06,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:31:06,413 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:31:06,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:31:06,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1865695479, now seen corresponding path program 2 times [2022-03-15 23:31:06,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:31:06,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123054216] [2022-03-15 23:31:06,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:31:06,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:31:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:31:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 158244 backedges. 36416 proven. 34150 refuted. 0 times theorem prover too weak. 87678 trivial. 0 not checked. [2022-03-15 23:31:32,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:31:32,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123054216] [2022-03-15 23:31:32,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123054216] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 23:31:32,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933079997] [2022-03-15 23:31:32,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 23:31:32,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:31:32,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:31:32,451 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) [2022-03-15 23:31:32,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 23:32:45,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 23:32:45,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 23:32:45,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 8454 conjuncts, 846 conjunts are in the unsatisfiable core [2022-03-15 23:32:45,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 23:33:38,651 INFO L387 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 [2022-03-15 23:33:38,851 INFO L387 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 22 treesize of output 10 [2022-03-15 23:33:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 158244 backedges. 25104 proven. 131767 refuted. 0 times theorem prover too weak. 1373 trivial. 0 not checked. [2022-03-15 23:33:39,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 23:34:05,015 INFO L134 CoverageAnalysis]: Checked inductivity of 158244 backedges. 25104 proven. 36654 refuted. 0 times theorem prover too weak. 96486 trivial. 0 not checked. [2022-03-15 23:34:05,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933079997] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 23:34:05,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 23:34:05,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 419, 11] total 436 [2022-03-15 23:34:05,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335940523] [2022-03-15 23:34:05,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 23:34:05,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 436 states [2022-03-15 23:34:05,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 23:34:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 436 interpolants. [2022-03-15 23:34:05,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2315, Invalid=187345, Unknown=0, NotChecked=0, Total=189660 [2022-03-15 23:34:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:34:05,047 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-15 23:34:05,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 436 states, 436 states have (on average 5.263761467889908) internal successors, (2295), 436 states have internal predecessors, (2295), 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) [2022-03-15 23:34:05,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:34:05,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:34:05,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-03-15 23:34:05,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-15 23:34:05,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:34:21,070 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10821 transitions and produced 9636 states. [2022-03-15 23:34:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 23:34:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 23:34:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 23:34:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 23:34:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-15 23:34:21,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 23:34:21,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:34:21,274 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 1 more)] === [2022-03-15 23:34:21,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 23:34:21,275 INFO L85 PathProgramCache]: Analyzing trace with hash -197395254, now seen corresponding path program 2 times [2022-03-15 23:34:21,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 23:34:21,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224169428] [2022-03-15 23:34:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 23:34:21,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 23:35:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 23:35:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 276054 backedges. 105102 proven. 41529 refuted. 0 times theorem prover too weak. 129423 trivial. 0 not checked. [2022-03-15 23:35:53,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 23:35:53,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224169428] [2022-03-15 23:35:53,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224169428] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 23:35:53,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575035511] [2022-03-15 23:35:53,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 23:35:53,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 23:35:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 23:35:53,372 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) [2022-03-15 23:35:53,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process