/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 19:06:16,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 19:06:16,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 19:06:16,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 19:06:16,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 19:06:16,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 19:06:16,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 19:06:16,581 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-FA-NoLbe-Delay.epf [2021-08-06 19:06:16,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 19:06:16,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 19:06:16,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 19:06:16,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 19:06:16,640 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 19:06:16,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 19:06:16,640 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 19:06:16,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 19:06:16,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 19:06:16,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 19:06:16,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 19:06:16,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 19:06:16,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 19:06:16,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 19:06:16,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:06:16,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 19:06:16,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 19:06:16,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 19:06:16,644 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 19:06:16,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 19:06:16,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 19:06:16,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 19:06:16,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 19:06:16,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 19:06:16,949 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 19:06:16,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2021-08-06 19:06:17,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f00b66/fe920ee3b4604bcfbee52d2d9e0080da/FLAG4f7ceea95 [2021-08-06 19:06:17,396 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 19:06:17,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2021-08-06 19:06:17,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f00b66/fe920ee3b4604bcfbee52d2d9e0080da/FLAG4f7ceea95 [2021-08-06 19:06:17,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f00b66/fe920ee3b4604bcfbee52d2d9e0080da [2021-08-06 19:06:17,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 19:06:17,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 19:06:17,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 19:06:17,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 19:06:17,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 19:06:17,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be5a229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17, skipping insertion in model container [2021-08-06 19:06:17,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 19:06:17,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 19:06:17,655 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i[949,962] [2021-08-06 19:06:17,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:06:17,791 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 19:06:17,800 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i[949,962] [2021-08-06 19:06:17,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:06:17,854 INFO L208 MainTranslator]: Completed translation [2021-08-06 19:06:17,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17 WrapperNode [2021-08-06 19:06:17,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 19:06:17,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 19:06:17,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 19:06:17,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 19:06:17,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 19:06:17,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 19:06:17,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 19:06:17,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 19:06:17,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 19:06:17,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 19:06:17,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 19:06:17,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 19:06:17,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (1/1) ... [2021-08-06 19:06:17,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:06:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 19:06:17,971 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) [2021-08-06 19:06:17,976 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 [2021-08-06 19:06:18,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 19:06:18,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 19:06:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 19:06:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 19:06:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 19:06:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 19:06:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 19:06:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 19:06:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 19:06:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 19:06:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 19:06:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 19:06:18,021 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 19:06:18,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 19:06:18,359 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 19:06:18,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:06:18 BoogieIcfgContainer [2021-08-06 19:06:18,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 19:06:18,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 19:06:18,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 19:06:18,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 19:06:18,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 07:06:17" (1/3) ... [2021-08-06 19:06:18,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ae0167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:06:18, skipping insertion in model container [2021-08-06 19:06:18,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:06:17" (2/3) ... [2021-08-06 19:06:18,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ae0167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:06:18, skipping insertion in model container [2021-08-06 19:06:18,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:06:18" (3/3) ... [2021-08-06 19:06:18,368 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2021-08-06 19:06:18,371 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 19:06:18,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 19:06:18,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 19:06:18,371 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 19:06:18,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,396 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,397 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,397 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,397 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,398 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,400 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,401 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,406 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,406 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:06:18,407 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 19:06:18,440 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 19:06:18,444 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-06 19:06:18,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-06 19:06:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 803 states, 691 states have (on average 1.7452966714905933) internal successors, (1206), 802 states have internal predecessors, (1206), 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) [2021-08-06 19:06:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-06 19:06:18,599 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:18,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:06:18,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-06 19:06:18,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:18,603 INFO L82 PathProgramCache]: Analyzing trace with hash -220175111, now seen corresponding path program 1 times [2021-08-06 19:06:18,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:18,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250842968] [2021-08-06 19:06:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:18,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:18,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:18,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250842968] [2021-08-06 19:06:18,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250842968] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:18,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:18,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:18,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249852439] [2021-08-06 19:06:18,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:18,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:18,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:18,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:18,980 INFO L87 Difference]: Start difference. First operand has 803 states, 691 states have (on average 1.7452966714905933) internal successors, (1206), 802 states have internal predecessors, (1206), 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) Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-08-06 19:06:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:19,167 INFO L93 Difference]: Finished difference Result 963 states and 1458 transitions. [2021-08-06 19:06:19,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) Word has length 39 [2021-08-06 19:06:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:19,190 INFO L225 Difference]: With dead ends: 963 [2021-08-06 19:06:19,190 INFO L226 Difference]: Without dead ends: 426 [2021-08-06 19:06:19,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 127.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-08-06 19:06:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2021-08-06 19:06:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 419 states have (on average 1.7852028639618138) internal successors, (748), 425 states have internal predecessors, (748), 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) [2021-08-06 19:06:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 748 transitions. [2021-08-06 19:06:19,256 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 748 transitions. Word has length 39 [2021-08-06 19:06:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:19,257 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 748 transitions. [2021-08-06 19:06:19,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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) [2021-08-06 19:06:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 748 transitions. [2021-08-06 19:06:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-08-06 19:06:19,259 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:19,259 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:06:19,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 19:06:19,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-06 19:06:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:19,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1018961222, now seen corresponding path program 1 times [2021-08-06 19:06:19,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:19,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900013026] [2021-08-06 19:06:19,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:19,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:19,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:19,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:19,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900013026] [2021-08-06 19:06:19,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900013026] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:19,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:19,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:19,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449996623] [2021-08-06 19:06:19,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:19,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:19,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:19,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:19,358 INFO L87 Difference]: Start difference. First operand 426 states and 748 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-08-06 19:06:19,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:19,437 INFO L93 Difference]: Finished difference Result 498 states and 899 transitions. [2021-08-06 19:06:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:19,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) Word has length 41 [2021-08-06 19:06:19,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:19,440 INFO L225 Difference]: With dead ends: 498 [2021-08-06 19:06:19,440 INFO L226 Difference]: Without dead ends: 414 [2021-08-06 19:06:19,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 71.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-08-06 19:06:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-08-06 19:06:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 407 states have (on average 1.7641277641277642) internal successors, (718), 413 states have internal predecessors, (718), 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) [2021-08-06 19:06:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 718 transitions. [2021-08-06 19:06:19,451 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 718 transitions. Word has length 41 [2021-08-06 19:06:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:19,451 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 718 transitions. [2021-08-06 19:06:19,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-08-06 19:06:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 718 transitions. [2021-08-06 19:06:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-06 19:06:19,452 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:19,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:06:19,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 19:06:19,453 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-06 19:06:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -577437714, now seen corresponding path program 1 times [2021-08-06 19:06:19,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:19,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957385438] [2021-08-06 19:06:19,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:19,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:19,485 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 75.0 percent of original size [2021-08-06 19:06:19,487 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 75.0 percent of original size [2021-08-06 19:06:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:19,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:19,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957385438] [2021-08-06 19:06:19,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957385438] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:19,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:19,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:19,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544103959] [2021-08-06 19:06:19,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:19,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:19,535 INFO L87 Difference]: Start difference. First operand 414 states and 718 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-08-06 19:06:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:19,645 INFO L93 Difference]: Finished difference Result 540 states and 1014 transitions. [2021-08-06 19:06:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:19,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) Word has length 42 [2021-08-06 19:06:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:19,648 INFO L225 Difference]: With dead ends: 540 [2021-08-06 19:06:19,648 INFO L226 Difference]: Without dead ends: 258 [2021-08-06 19:06:19,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 92.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:19,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-08-06 19:06:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 220. [2021-08-06 19:06:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.7023255813953488) internal successors, (366), 219 states have internal predecessors, (366), 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) [2021-08-06 19:06:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 366 transitions. [2021-08-06 19:06:19,654 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 366 transitions. Word has length 42 [2021-08-06 19:06:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:19,654 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 366 transitions. [2021-08-06 19:06:19,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 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) [2021-08-06 19:06:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 366 transitions. [2021-08-06 19:06:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-06 19:06:19,655 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:19,655 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:06:19,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 19:06:19,656 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-06 19:06:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash -714361989, now seen corresponding path program 1 times [2021-08-06 19:06:19,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:19,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612862753] [2021-08-06 19:06:19,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:19,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:19,740 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:19,742 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:19,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:19,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612862753] [2021-08-06 19:06:19,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612862753] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:19,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:19,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:19,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214714068] [2021-08-06 19:06:19,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:19,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:19,756 INFO L87 Difference]: Start difference. First operand 220 states and 366 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-08-06 19:06:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:19,837 INFO L93 Difference]: Finished difference Result 200 states and 297 transitions. [2021-08-06 19:06:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) Word has length 43 [2021-08-06 19:06:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:19,838 INFO L225 Difference]: With dead ends: 200 [2021-08-06 19:06:19,838 INFO L226 Difference]: Without dead ends: 144 [2021-08-06 19:06:19,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 70.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:19,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-08-06 19:06:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-08-06 19:06:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 139 states have (on average 1.6402877697841727) internal successors, (228), 143 states have internal predecessors, (228), 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) [2021-08-06 19:06:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 228 transitions. [2021-08-06 19:06:19,842 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 228 transitions. Word has length 43 [2021-08-06 19:06:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:19,842 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 228 transitions. [2021-08-06 19:06:19,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-08-06 19:06:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 228 transitions. [2021-08-06 19:06:19,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-06 19:06:19,843 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:19,843 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-06 19:06:19,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 19:06:19,843 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-06 19:06:19,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash 606005322, now seen corresponding path program 1 times [2021-08-06 19:06:19,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:19,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685732343] [2021-08-06 19:06:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:19,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:19,921 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:19,923 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:19,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:19,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685732343] [2021-08-06 19:06:19,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685732343] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:19,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:19,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:06:19,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395272949] [2021-08-06 19:06:19,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:06:19,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:06:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:06:19,938 INFO L87 Difference]: Start difference. First operand 144 states and 228 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-08-06 19:06:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:19,990 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2021-08-06 19:06:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-06 19:06:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) Word has length 45 [2021-08-06 19:06:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:19,991 INFO L225 Difference]: With dead ends: 58 [2021-08-06 19:06:19,991 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 19:06:19,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.1ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 19:06:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 19:06:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-08-06 19:06:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 19:06:19,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-08-06 19:06:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:19,992 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 19:06:19,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-08-06 19:06:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 19:06:19,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 19:06:19,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 19:06:19,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 19:06:19,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 19:06:19,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 19:06:19,997 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 19:06:19,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 19:06:19,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 07:06:19 BasicIcfg [2021-08-06 19:06:19,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 19:06:20,004 INFO L168 Benchmark]: Toolchain (without parser) took 2574.98 ms. Allocated memory was 219.2 MB in the beginning and 324.0 MB in the end (delta: 104.9 MB). Free memory was 183.2 MB in the beginning and 221.7 MB in the end (delta: -38.5 MB). Peak memory consumption was 66.6 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,004 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 201.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 19:06:20,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.10 ms. Allocated memory is still 219.2 MB. Free memory was 182.9 MB in the beginning and 193.1 MB in the end (delta: -10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.07 ms. Allocated memory is still 219.2 MB. Free memory was 193.1 MB in the beginning and 191.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,005 INFO L168 Benchmark]: Boogie Preprocessor took 25.35 ms. Allocated memory is still 219.2 MB. Free memory was 191.1 MB in the beginning and 190.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,005 INFO L168 Benchmark]: RCFGBuilder took 434.56 ms. Allocated memory is still 219.2 MB. Free memory was 189.7 MB in the beginning and 169.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,007 INFO L168 Benchmark]: TraceAbstraction took 1635.34 ms. Allocated memory was 219.2 MB in the beginning and 324.0 MB in the end (delta: 104.9 MB). Free memory was 168.7 MB in the beginning and 221.7 MB in the end (delta: -53.0 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:20,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 201.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 428.10 ms. Allocated memory is still 219.2 MB. Free memory was 182.9 MB in the beginning and 193.1 MB in the end (delta: -10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.07 ms. Allocated memory is still 219.2 MB. Free memory was 193.1 MB in the beginning and 191.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.35 ms. Allocated memory is still 219.2 MB. Free memory was 191.1 MB in the beginning and 190.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 434.56 ms. Allocated memory is still 219.2 MB. Free memory was 189.7 MB in the beginning and 169.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1635.34 ms. Allocated memory was 219.2 MB in the beginning and 324.0 MB in the end (delta: 104.9 MB). Free memory was 168.7 MB in the beginning and 221.7 MB in the end (delta: -53.0 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1544, positive: 1470, positive conditional: 1470, positive unconditional: 0, negative: 74, negative conditional: 74, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1533, positive: 1470, positive conditional: 0, positive unconditional: 1470, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 315, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 315, positive: 303, positive conditional: 0, positive unconditional: 303, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1533, positive: 1166, positive conditional: 0, positive unconditional: 1166, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 315, unknown conditional: 0, unknown unconditional: 315] , Statistics on independence cache: Total cache size (in pairs): 315, Positive cache size: 304, Positive conditional cache size: 0, Positive unconditional cache size: 304, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Independence queries for same thread: 11 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1558.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 16.3ms, AutomataDifference: 556.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 142.8ms, PartialOrderReductionTime: 133.0ms, HoareTripleCheckerStatistics: 335 SDtfs, 319 SDslu, 919 SDs, 0 SdLazy, 132 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 123.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 418.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=803occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 76.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 38 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.5ms SsaConstructionTime, 108.1ms SatisfiabilityAnalysisTime, 529.2ms InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 19:06:20,043 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...