/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:45:17,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:45:17,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:45:18,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:45:18,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:45:18,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:45:18,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:45:18,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:45:18,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:45:18,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:45:18,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:45:18,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:45:18,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:45:18,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:45:18,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:45:18,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:45:18,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:45:18,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:45:18,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:45:18,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:45:18,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:45:18,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:45:18,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:45:18,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:45:18,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:45:18,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:45:18,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:45:18,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:45:18,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:45:18,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:45:18,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:45:18,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:45:18,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:45:18,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:45:18,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:45:18,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:45:18,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:45:18,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:45:18,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:45:18,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:45:18,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:45:18,113 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-keepdead.epf [2020-12-17 23:45:18,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:45:18,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:45:18,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:45:18,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:45:18,167 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:45:18,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:45:18,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:45:18,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:45:18,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:45:18,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:45:18,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:45:18,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:45:18,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:45:18,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:45:18,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:45:18,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:45:18,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:45:18,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:45:18,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:45:18,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:45:18,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:45:18,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:45:18,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:45:18,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:45:18,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:45:18,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:45:18,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:45:18,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:45:18,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:45:18,173 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:45:18,173 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:45:18,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:45:18,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:45:18,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:45:18,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:45:18,595 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:45:18,596 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:45:18,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-12-17 23:45:18,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3d52335/af97ea23ef7944fdaf8efe6210089645/FLAGa9370a8f5 [2020-12-17 23:45:19,441 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:45:19,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-12-17 23:45:19,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3d52335/af97ea23ef7944fdaf8efe6210089645/FLAGa9370a8f5 [2020-12-17 23:45:19,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3d52335/af97ea23ef7944fdaf8efe6210089645 [2020-12-17 23:45:19,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:45:19,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:45:19,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:45:19,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:45:19,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:45:19,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:45:19" (1/1) ... [2020-12-17 23:45:19,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13091dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:19, skipping insertion in model container [2020-12-17 23:45:19,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:45:19" (1/1) ... [2020-12-17 23:45:19,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:45:19,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:45:20,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:45:20,215 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:45:20,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:45:20,371 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:45:20,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20 WrapperNode [2020-12-17 23:45:20,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:45:20,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:45:20,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:45:20,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:45:20,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:45:20,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:45:20,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:45:20,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:45:20,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (1/1) ... [2020-12-17 23:45:20,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:45:20,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:45:20,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:45:20,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:45:20,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (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 [2020-12-17 23:45:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:45:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:45:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:45:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:45:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:45:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:45:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:45:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:45:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:45:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:45:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:45:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:45:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:45:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:45:20,702 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:45:21,082 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:45:21,083 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:45:21,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:21 BoogieIcfgContainer [2020-12-17 23:45:21,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:45:21,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:45:21,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:45:21,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:45:21,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:45:19" (1/3) ... [2020-12-17 23:45:21,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ceadaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:21, skipping insertion in model container [2020-12-17 23:45:21,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:20" (2/3) ... [2020-12-17 23:45:21,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ceadaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:21, skipping insertion in model container [2020-12-17 23:45:21,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:21" (3/3) ... [2020-12-17 23:45:21,094 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-12-17 23:45:21,114 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:45:21,114 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:45:21,118 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:45:21,119 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:45:21,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,176 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,176 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,190 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,190 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,190 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,191 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,191 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,206 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:21,212 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:45:21,229 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:45:21,254 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:45:21,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:45:21,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:45:21,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:45:21,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:45:21,255 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:45:21,256 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:45:21,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:45:21,269 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-17 23:45:22,185 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) [2020-12-17 23:45:22,226 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) [2020-12-17 23:45:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 23:45:22,274 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:22,275 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] [2020-12-17 23:45:22,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-12-17 23:45:22,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:22,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410679782] [2020-12-17 23:45:22,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:22,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410679782] [2020-12-17 23:45:22,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:22,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:45:22,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414236367] [2020-12-17 23:45:22,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:45:22,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:22,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:45:22,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:45:22,830 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) [2020-12-17 23:45:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:23,229 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2020-12-17 23:45:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:45:23,231 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 [2020-12-17 23:45:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:23,234 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:45:23,234 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2020-12-17 23:45:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:23,236 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2020-12-17 23:45:23,236 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) [2020-12-17 23:45:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2020-12-17 23:45:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:45:23,254 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:23,254 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] [2020-12-17 23:45:23,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:45:23,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:23,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-12-17 23:45:23,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:23,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104266268] [2020-12-17 23:45:23,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:23,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104266268] [2020-12-17 23:45:23,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:23,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:23,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947794184] [2020-12-17 23:45:23,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:23,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:23,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:23,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:23,525 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:45:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:23,986 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2020-12-17 23:45:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-12-17 23:45:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:23,992 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:23,993 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2020-12-17 23:45:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:23,993 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2020-12-17 23:45:23,994 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) [2020-12-17 23:45:23,994 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2020-12-17 23:45:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:45:24,026 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:24,026 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] [2020-12-17 23:45:24,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:45:24,027 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:24,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:24,027 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-12-17 23:45:24,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:24,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766842054] [2020-12-17 23:45:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:24,237 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2020-12-17 23:45:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:24,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766842054] [2020-12-17 23:45:24,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:24,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:24,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717123243] [2020-12-17 23:45:24,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:24,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:24,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:24,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:24,279 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. 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) [2020-12-17 23:45:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:24,970 INFO L93 Difference]: Finished difference Result 28421 states and 96001 transitions. [2020-12-17 23:45:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:24,971 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 [2020-12-17 23:45:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:24,972 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:24,972 INFO L78 Accepts]: Start accepts. Automaton has 28421 states and 96001 transitions. Word has length 48 [2020-12-17 23:45:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:24,973 INFO L481 AbstractCegarLoop]: Abstraction has 28421 states and 96001 transitions. [2020-12-17 23:45:24,973 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) [2020-12-17 23:45:24,973 INFO L276 IsEmpty]: Start isEmpty. Operand 28421 states and 96001 transitions. [2020-12-17 23:45:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:45:25,070 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:25,070 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] [2020-12-17 23:45:25,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:45:25,071 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:25,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:25,072 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-12-17 23:45:25,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:25,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713022126] [2020-12-17 23:45:25,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:45:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:45:25,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713022126] [2020-12-17 23:45:25,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:45:25,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:45:25,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045167031] [2020-12-17 23:45:25,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:45:25,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:45:25,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:45:25,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:45:25,214 INFO L87 Difference]: Start difference. First operand 28421 states and 96001 transitions. 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) [2020-12-17 23:45:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:45:25,850 INFO L93 Difference]: Finished difference Result 44301 states and 148115 transitions. [2020-12-17 23:45:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:45:25,854 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 [2020-12-17 23:45:25,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:45:25,856 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:45:25,856 INFO L78 Accepts]: Start accepts. Automaton has 44301 states and 148115 transitions. Word has length 51 [2020-12-17 23:45:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:45:25,857 INFO L481 AbstractCegarLoop]: Abstraction has 44301 states and 148115 transitions. [2020-12-17 23:45:25,857 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) [2020-12-17 23:45:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 44301 states and 148115 transitions. [2020-12-17 23:45:25,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:45:25,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:45:25,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:45:25 BasicIcfg [2020-12-17 23:45:25,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:45:25,995 INFO L168 Benchmark]: Toolchain (without parser) took 6348.01 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 838.9 MB). Free memory was 276.5 MB in the beginning and 885.3 MB in the end (delta: -608.8 MB). Peak memory consumption was 255.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:25,996 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 271.4 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:45:25,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.94 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 245.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:25,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.51 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:25,999 INFO L168 Benchmark]: Boogie Preprocessor took 90.95 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 284.7 MB in the end (delta: -41.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:26,000 INFO L168 Benchmark]: RCFGBuilder took 516.85 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 262.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:26,001 INFO L168 Benchmark]: TraceAbstraction took 4906.24 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 838.9 MB). Free memory was 261.3 MB in the beginning and 885.3 MB in the end (delta: -624.0 MB). Peak memory consumption was 240.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:45:26,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 271.4 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 722.94 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 245.6 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 95.51 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 243.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 90.95 ms. Allocated memory is still 302.0 MB. Free memory was 243.6 MB in the beginning and 284.7 MB in the end (delta: -41.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * RCFGBuilder took 516.85 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 262.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4906.24 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 838.9 MB). Free memory was 261.3 MB in the beginning and 885.3 MB in the end (delta: -624.0 MB). Peak memory consumption was 240.0 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: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 472 SDtfs, 1170 SDslu, 1715 SDs, 0 SdLazy, 161 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44301occurred in iteration=4, 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...