/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 22:15:14,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 22:15:14,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 22:15:14,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 22:15:14,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 22:15:14,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 22:15:14,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 22:15:14,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 22:15:14,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 22:15:14,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 22:15:14,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 22:15:14,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 22:15:14,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 22:15:14,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 22:15:14,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 22:15:14,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 22:15:14,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 22:15:14,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 22:15:14,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 22:15:14,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 22:15:14,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 22:15:14,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 22:15:14,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 22:15:14,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 22:15:14,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 22:15:14,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 22:15:14,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 22:15:14,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 22:15:14,262 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-Sleep-NoLbe-Delay.epf [2021-02-16 22:15:14,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 22:15:14,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 22:15:14,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 22:15:14,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 22:15:14,307 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 22:15:14,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 22:15:14,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 22:15:14,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 22:15:14,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 22:15:14,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 22:15:14,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 22:15:14,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 22:15:14,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 22:15:14,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 22:15:14,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 22:15:14,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 22:15:14,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 22:15:14,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 22:15:14,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 22:15:14,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 22:15:14,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 22:15:14,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 22:15:14,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 22:15:14,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 22:15:14,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 22:15:14,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 22:15:14,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 22:15:14,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 22:15:14,313 INFO L138 SettingsManager]: * Lazy Petri-NFA conversion=true [2021-02-16 22:15:14,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-16 22:15:14,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 22:15:14,314 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-16 22:15:14,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 22:15:14,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 22:15:14,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 22:15:14,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 22:15:14,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 22:15:14,743 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 22:15:14,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-02-16 22:15:14,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df03d8096/b54eaef533ce4391bd6da47daee8d5e1/FLAG9cf7450b9 [2021-02-16 22:15:15,565 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 22:15:15,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-02-16 22:15:15,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df03d8096/b54eaef533ce4391bd6da47daee8d5e1/FLAG9cf7450b9 [2021-02-16 22:15:15,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df03d8096/b54eaef533ce4391bd6da47daee8d5e1 [2021-02-16 22:15:15,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 22:15:15,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 22:15:15,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 22:15:15,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 22:15:15,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 22:15:15,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 10:15:15" (1/1) ... [2021-02-16 22:15:15,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d869eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:15, skipping insertion in model container [2021-02-16 22:15:15,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 10:15:15" (1/1) ... [2021-02-16 22:15:15,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 22:15:15,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 22:15:16,118 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i[949,962] [2021-02-16 22:15:16,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 22:15:16,368 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 22:15:16,385 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i[949,962] [2021-02-16 22:15:16,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 22:15:16,634 INFO L208 MainTranslator]: Completed translation [2021-02-16 22:15:16,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16 WrapperNode [2021-02-16 22:15:16,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 22:15:16,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 22:15:16,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 22:15:16,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 22:15:16,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 22:15:16,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 22:15:16,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 22:15:16,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 22:15:16,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... [2021-02-16 22:15:16,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 22:15:16,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 22:15:16,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 22:15:16,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 22:15:16,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 22:15:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 22:15:16,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-02-16 22:15:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 22:15:16,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 22:15:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-02-16 22:15:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-02-16 22:15:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-02-16 22:15:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-02-16 22:15:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 22:15:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-02-16 22:15:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 22:15:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 22:15:16,896 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 22:15:17,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 22:15:17,246 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-02-16 22:15:17,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:15:17 BoogieIcfgContainer [2021-02-16 22:15:17,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 22:15:17,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 22:15:17,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 22:15:17,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 22:15:17,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 10:15:15" (1/3) ... [2021-02-16 22:15:17,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71774e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 10:15:17, skipping insertion in model container [2021-02-16 22:15:17,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 10:15:16" (2/3) ... [2021-02-16 22:15:17,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71774e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 10:15:17, skipping insertion in model container [2021-02-16 22:15:17,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 10:15:17" (3/3) ... [2021-02-16 22:15:17,258 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2021-02-16 22:15:17,267 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 22:15:17,267 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 22:15:17,272 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-16 22:15:17,274 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 22:15:17,322 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,327 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,327 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,341 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,342 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,358 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,358 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,358 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 22:15:17,366 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-02-16 22:15:17,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-02-16 22:15:17,436 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 22:15:17,437 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 22:15:17,437 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 22:15:17,437 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 22:15:17,437 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 22:15:17,437 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 22:15:17,438 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 22:15:17,438 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-16 22:15:17,652 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 22:15:17,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 22:15:17,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1255692820, now seen corresponding path program 1 times [2021-02-16 22:15:17,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 22:15:17,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726106600] [2021-02-16 22:15:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 22:15:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 22:15:17,840 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 22:15:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-16 22:15:17,889 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-16 22:15:17,945 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-16 22:15:17,946 INFO L606 BasicCegarLoop]: Counterexample might be feasible [2021-02-16 22:15:17,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 22:15:18,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 10:15:18 BasicIcfg [2021-02-16 22:15:18,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 22:15:18,031 INFO L168 Benchmark]: Toolchain (without parser) took 2215.35 ms. Allocated memory is still 304.1 MB. Free memory was 278.0 MB in the beginning and 224.2 MB in the end (delta: 53.8 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.0 GB. [2021-02-16 22:15:18,034 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 304.1 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 22:15:18,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.47 ms. Allocated memory is still 304.1 MB. Free memory was 276.9 MB in the beginning and 278.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. [2021-02-16 22:15:18,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.21 ms. Allocated memory is still 304.1 MB. Free memory was 278.7 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 22:15:18,039 INFO L168 Benchmark]: Boogie Preprocessor took 55.21 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 22:15:18,041 INFO L168 Benchmark]: RCFGBuilder took 472.42 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 255.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-02-16 22:15:18,043 INFO L168 Benchmark]: TraceAbstraction took 777.11 ms. Allocated memory is still 304.1 MB. Free memory was 254.6 MB in the beginning and 224.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-02-16 22:15:18,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 304.1 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 810.47 ms. Allocated memory is still 304.1 MB. Free memory was 276.9 MB in the beginning and 278.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 83.21 ms. Allocated memory is still 304.1 MB. Free memory was 278.7 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.21 ms. Allocated memory is still 304.1 MB. Free memory was 276.6 MB in the beginning and 275.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 472.42 ms. Allocated memory is still 304.1 MB. Free memory was 275.6 MB in the beginning and 255.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 777.11 ms. Allocated memory is still 304.1 MB. Free memory was 254.6 MB in the beginning and 224.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=-1, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=-1, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=-1, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=-1, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=0, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=0, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=0, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, arg={8:9}, arg={8:9}, main$tmp_guard0=1] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=2, arg={8:9}, arg={8:9}, main$tmp_guard0=1] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, arg={8:9}, arg={8:9}, main$tmp_guard0=1] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=3, arg={8:9}, arg={8:9}, main$tmp_guard0=1] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, arg={8:9}, arg={8:9}, main$tmp_guard0=1] [L765] main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=4, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=5, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=5, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=6, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=6, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L745] __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0, main$tmp_guard1=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0, main$tmp_guard1=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0, main$tmp_guard1=0] [L3] COND FALSE !(!cond) VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0, main$tmp_guard1=0] [L18] reach_error() VAL [__unbuffered_cnt=7, arg={8:9}, arg={8:9}, main$tmp_guard0=0, main$tmp_guard1=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...