/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-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:52:26,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:52:26,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:52:26,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:52:26,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:52:26,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:52:26,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:52:26,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:52:26,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:52:26,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:52:26,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:52:26,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:52:26,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:52:26,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:52:26,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:52:26,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:52:26,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:52:26,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:52:26,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:52:26,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:52:26,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:52:26,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:52:26,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:52:26,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:52:26,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:52:26,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:52:26,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:52:26,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:52:26,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:52:26,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:52:26,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:52:26,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:52:26,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:52:26,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:52:26,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:52:26,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:52:26,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:52:26,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:52:26,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:52:26,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:52:26,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:52:26,346 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.epf [2021-01-20 14:52:26,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:52:26,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:52:26,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:52:26,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:52:26,400 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:52:26,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:52:26,401 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:52:26,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:52:26,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:52:26,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:52:26,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:52:26,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:52:26,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:52:26,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:52:26,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:52:26,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:52:26,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:52:26,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:52:26,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:52:26,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:52:26,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:52:26,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:52:26,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:52:26,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:52:26,407 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:52:26,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:52:26,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:52:26,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:52:26,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:52:26,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:52:26,842 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:52:26,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-01-20 14:52:26,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/556cb621d/a3372a564f6d4a22a6c3df71c36eb18e/FLAGb787f50ca [2021-01-20 14:52:27,723 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:52:27,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2021-01-20 14:52:27,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/556cb621d/a3372a564f6d4a22a6c3df71c36eb18e/FLAGb787f50ca [2021-01-20 14:52:27,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/556cb621d/a3372a564f6d4a22a6c3df71c36eb18e [2021-01-20 14:52:27,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:52:28,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:52:28,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:28,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:52:28,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:52:28,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:27" (1/1) ... [2021-01-20 14:52:28,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed84099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28, skipping insertion in model container [2021-01-20 14:52:28,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:52:27" (1/1) ... [2021-01-20 14:52:28,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:52:28,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:52:28,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:28,613 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:52:28,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:52:28,802 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:52:28,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28 WrapperNode [2021-01-20 14:52:28,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:52:28,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:28,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:52:28,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:52:28,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:52:28,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:52:28,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:52:28,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:52:28,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (1/1) ... [2021-01-20 14:52:28,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:52:28,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:52:28,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:52:28,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:52:28,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (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 [2021-01-20 14:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:52:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:52:29,012 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:52:29,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:52:29,545 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:52:29,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:29 BoogieIcfgContainer [2021-01-20 14:52:29,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:52:29,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:52:29,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:52:29,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:52:29,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:52:27" (1/3) ... [2021-01-20 14:52:29,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e51ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:29, skipping insertion in model container [2021-01-20 14:52:29,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:52:28" (2/3) ... [2021-01-20 14:52:29,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e51ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:52:29, skipping insertion in model container [2021-01-20 14:52:29,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:52:29" (3/3) ... [2021-01-20 14:52:29,557 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2021-01-20 14:52:29,575 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:52:29,575 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:52:29,580 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:52:29,581 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:52:29,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,623 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,626 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,631 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,641 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,641 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,644 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,645 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,645 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:52:29,648 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:52:29,664 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:52:29,689 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:52:29,689 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:52:29,689 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:52:29,689 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:52:29,690 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:52:29,690 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:52:29,690 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:52:29,690 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:52:29,703 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2021-01-20 14:52:30,659 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2021-01-20 14:52:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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) [2021-01-20 14:52:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 14:52:30,774 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:30,776 INFO L504 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] [2021-01-20 14:52:30,776 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:30,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:30,784 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2021-01-20 14:52:30,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:30,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110001064] [2021-01-20 14:52:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:31,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:31,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110001064] [2021-01-20 14:52:31,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:31,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:52:31,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209223412] [2021-01-20 14:52:31,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:52:31,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:31,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:52:31,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:52:31,413 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 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) [2021-01-20 14:52:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:31,779 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2021-01-20 14:52:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:52:31,781 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 [2021-01-20 14:52:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:31,843 INFO L225 Difference]: With dead ends: 12201 [2021-01-20 14:52:31,843 INFO L226 Difference]: Without dead ends: 4606 [2021-01-20 14:52:31,845 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:52:31,845 INFO L78 Accepts]: Start accepts. Automaton has 4606 states. Word has length 43 [2021-01-20 14:52:31,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:31,847 INFO L481 AbstractCegarLoop]: Abstraction has 4606 states. [2021-01-20 14:52:31,847 INFO L482 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) [2021-01-20 14:52:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4606 states. [2021-01-20 14:52:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:52:31,863 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:31,863 INFO L504 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] [2021-01-20 14:52:31,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:52:31,864 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:31,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2021-01-20 14:52:31,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:31,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560370006] [2021-01-20 14:52:31,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:32,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560370006] [2021-01-20 14:52:32,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:32,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:32,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939329603] [2021-01-20 14:52:32,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:32,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:32,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:32,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:32,073 INFO L87 Difference]: Start difference. First operand 4606 states. 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) [2021-01-20 14:52:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:32,482 INFO L93 Difference]: Finished difference Result 5726 states and 19296 transitions. [2021-01-20 14:52:32,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:32,483 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 [2021-01-20 14:52:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:32,512 INFO L225 Difference]: With dead ends: 5726 [2021-01-20 14:52:32,512 INFO L226 Difference]: Without dead ends: 2871 [2021-01-20 14:52:32,514 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:32,514 INFO L78 Accepts]: Start accepts. Automaton has 2871 states. Word has length 45 [2021-01-20 14:52:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:32,515 INFO L481 AbstractCegarLoop]: Abstraction has 2871 states. [2021-01-20 14:52:32,515 INFO L482 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) [2021-01-20 14:52:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states. [2021-01-20 14:52:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:52:32,528 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:32,528 INFO L504 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, 1, 1, 1] [2021-01-20 14:52:32,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:52:32,530 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2021-01-20 14:52:32,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:32,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923729712] [2021-01-20 14:52:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:32,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923729712] [2021-01-20 14:52:32,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:32,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295861393] [2021-01-20 14:52:32,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:32,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:32,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:32,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:32,783 INFO L87 Difference]: Start difference. First operand 2871 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-20 14:52:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:32,993 INFO L93 Difference]: Finished difference Result 3791 states and 12381 transitions. [2021-01-20 14:52:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-01-20 14:52:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:33,010 INFO L225 Difference]: With dead ends: 3791 [2021-01-20 14:52:33,010 INFO L226 Difference]: Without dead ends: 1761 [2021-01-20 14:52:33,011 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:33,011 INFO L78 Accepts]: Start accepts. Automaton has 1761 states. Word has length 48 [2021-01-20 14:52:33,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:33,013 INFO L481 AbstractCegarLoop]: Abstraction has 1761 states. [2021-01-20 14:52:33,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-20 14:52:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2021-01-20 14:52:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 14:52:33,019 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:52:33,020 INFO L504 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, 1, 1, 1, 1, 1, 1] [2021-01-20 14:52:33,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:52:33,020 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:52:33,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:52:33,025 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2021-01-20 14:52:33,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:52:33,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380796899] [2021-01-20 14:52:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:52:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:52:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:52:33,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380796899] [2021-01-20 14:52:33,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:52:33,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:52:33,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930341836] [2021-01-20 14:52:33,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:52:33,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:52:33,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:52:33,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:52:33,235 INFO L87 Difference]: Start difference. First operand 1761 states. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-01-20 14:52:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:52:33,400 INFO L93 Difference]: Finished difference Result 1441 states and 4503 transitions. [2021-01-20 14:52:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:52:33,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-01-20 14:52:33,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:52:33,401 INFO L225 Difference]: With dead ends: 1441 [2021-01-20 14:52:33,401 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:52:33,402 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:52:33,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 51 [2021-01-20 14:52:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:52:33,402 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:52:33,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-01-20 14:52:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:52:33,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:52:33,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:52:33,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:52:33 BasicIcfg [2021-01-20 14:52:33,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:52:33,411 INFO L168 Benchmark]: Toolchain (without parser) took 5413.84 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.6 MB in the beginning and 234.9 MB in the end (delta: 42.7 MB). Peak memory consumption was 105.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:33,412 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:33,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.46 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 246.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:33,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.95 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:33,415 INFO L168 Benchmark]: Boogie Preprocessor took 30.14 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:52:33,415 INFO L168 Benchmark]: RCFGBuilder took 660.91 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 261.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:33,416 INFO L168 Benchmark]: TraceAbstraction took 3858.97 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.7 MB in the beginning and 234.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:52:33,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 795.46 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 246.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.95 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.14 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 660.91 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 261.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3858.97 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 261.7 MB in the beginning and 234.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 406 SDtfs, 616 SDslu, 1282 SDs, 0 SdLazy, 99 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...