/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:28:30,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:28:30,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:28:30,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:28:30,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:28:30,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:28:30,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:28:30,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:28:30,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:28:30,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:28:30,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:28:30,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:28:30,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:28:30,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:28:30,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:28:30,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:28:30,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:28:30,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:28:30,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:28:30,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:28:30,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:28:30,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:28:30,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:28:30,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:28:30,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:28:30,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:28:30,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:28:30,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:28:30,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:28:30,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:28:30,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:28:30,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:28:30,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:28:30,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:28:30,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:28:30,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:28:30,124 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-New_States.epf [2020-11-12 12:28:30,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:28:30,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:28:30,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:28:30,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:28:30,165 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:28:30,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:28:30,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:28:30,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:28:30,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:28:30,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:28:30,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:28:30,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:28:30,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:28:30,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:28:30,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:28:30,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:28:30,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:28:30,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:28:30,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:28:30,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:28:30,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:28:30,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:28:30,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:28:30,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:28:30,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:28:30,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:28:30,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:28:30,172 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:28:30,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:28:30,173 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:28:30,173 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:28:30,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:28:30,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:28:30,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:28:30,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:28:30,672 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:28:30,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-11-12 12:28:30,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86168d/0f859a8ad34546d98dbe181d3d552d2f/FLAGa11f87821 [2020-11-12 12:28:31,518 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:28:31,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-11-12 12:28:31,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86168d/0f859a8ad34546d98dbe181d3d552d2f/FLAGa11f87821 [2020-11-12 12:28:31,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4a86168d/0f859a8ad34546d98dbe181d3d552d2f [2020-11-12 12:28:31,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:28:31,783 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:28:31,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:28:31,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:28:31,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:28:31,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:31" (1/1) ... [2020-11-12 12:28:31,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c526875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:31, skipping insertion in model container [2020-11-12 12:28:31,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:28:31" (1/1) ... [2020-11-12 12:28:31,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:28:31,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:28:32,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:28:32,226 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:28:32,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:28:32,542 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:28:32,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32 WrapperNode [2020-11-12 12:28:32,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:28:32,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:28:32,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:28:32,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:28:32,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:28:32,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:28:32,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:28:32,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:28:32,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (1/1) ... [2020-11-12 12:28:32,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:28:32,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:28:32,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:28:32,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:28:32,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (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 [2020-11-12 12:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:28:32,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:28:32,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:28:32,774 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:28:33,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:28:33,209 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:28:33,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:33 BoogieIcfgContainer [2020-11-12 12:28:33,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:28:33,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:28:33,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:28:33,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:28:33,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:28:31" (1/3) ... [2020-11-12 12:28:33,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a75583f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:33, skipping insertion in model container [2020-11-12 12:28:33,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:28:32" (2/3) ... [2020-11-12 12:28:33,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a75583f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:28:33, skipping insertion in model container [2020-11-12 12:28:33,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:28:33" (3/3) ... [2020-11-12 12:28:33,222 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-11-12 12:28:33,239 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:28:33,240 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:28:33,244 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:28:33,245 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:28:33,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,279 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,282 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,282 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:28:33,303 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:28:33,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 12:28:33,342 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:28:33,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:28:33,342 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:28:33,342 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:28:33,342 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:28:33,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:28:33,343 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:28:33,343 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:28:33,356 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-12 12:28:33,447 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2020-11-12 12:28:33,770 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 319ms [2020-11-12 12:28:33,775 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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) [2020-11-12 12:28:33,783 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 4058 states, 3659 states have (on average 1.1708116971850233) internal successors, (4284), 4057 states have internal predecessors, (4284), 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) [2020-11-12 12:28:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 4058 states, 3659 states have (on average 1.1708116971850233) internal successors, (4284), 4057 states have internal predecessors, (4284), 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) [2020-11-12 12:28:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-12 12:28:33,804 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:33,805 INFO L494 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] [2020-11-12 12:28:33,806 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:33,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2020-11-12 12:28:33,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:33,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346103817] [2020-11-12 12:28:33,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:34,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346103817] [2020-11-12 12:28:34,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:34,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:28:34,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118984189] [2020-11-12 12:28:34,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:28:34,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:34,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:28:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:28:34,294 INFO L87 Difference]: Start difference. First operand has 4058 states, 3659 states have (on average 1.1708116971850233) internal successors, (4284), 4057 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2020-11-12 12:28:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:34,650 INFO L93 Difference]: Finished difference Result 1802 states and 1945 transitions. [2020-11-12 12:28:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:28:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2020-11-12 12:28:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:34,675 INFO L225 Difference]: With dead ends: 1802 [2020-11-12 12:28:34,675 INFO L226 Difference]: Without dead ends: 735 [2020-11-12 12:28:34,679 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:28:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-11-12 12:28:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-11-12 12:28:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 692 states have (on average 1.2326589595375723) internal successors, (853), 734 states have internal predecessors, (853), 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) [2020-11-12 12:28:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 853 transitions. [2020-11-12 12:28:34,828 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 853 transitions. Word has length 36 [2020-11-12 12:28:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:34,828 INFO L481 AbstractCegarLoop]: Abstraction has 735 states and 853 transitions. [2020-11-12 12:28:34,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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) [2020-11-12 12:28:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 853 transitions. [2020-11-12 12:28:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-12 12:28:34,831 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:34,832 INFO L494 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] [2020-11-12 12:28:34,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:28:34,832 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:34,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:34,833 INFO L82 PathProgramCache]: Analyzing trace with hash 603828472, now seen corresponding path program 1 times [2020-11-12 12:28:34,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:34,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198281147] [2020-11-12 12:28:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:35,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198281147] [2020-11-12 12:28:35,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:35,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:28:35,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48809051] [2020-11-12 12:28:35,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:28:35,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:35,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:28:35,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:28:35,115 INFO L87 Difference]: Start difference. First operand 735 states and 853 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2020-11-12 12:28:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:35,340 INFO L93 Difference]: Finished difference Result 740 states and 800 transitions. [2020-11-12 12:28:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:28:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 38 [2020-11-12 12:28:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:35,345 INFO L225 Difference]: With dead ends: 740 [2020-11-12 12:28:35,346 INFO L226 Difference]: Without dead ends: 568 [2020-11-12 12:28:35,347 INFO L749 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 [2020-11-12 12:28:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-11-12 12:28:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2020-11-12 12:28:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 535 states have (on average 1.1682242990654206) internal successors, (625), 567 states have internal predecessors, (625), 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) [2020-11-12 12:28:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 625 transitions. [2020-11-12 12:28:35,371 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 625 transitions. Word has length 38 [2020-11-12 12:28:35,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:35,371 INFO L481 AbstractCegarLoop]: Abstraction has 568 states and 625 transitions. [2020-11-12 12:28:35,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2020-11-12 12:28:35,372 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 625 transitions. [2020-11-12 12:28:35,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 12:28:35,374 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:35,374 INFO L494 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] [2020-11-12 12:28:35,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:28:35,374 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:35,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:35,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1564162379, now seen corresponding path program 1 times [2020-11-12 12:28:35,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:35,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491592077] [2020-11-12 12:28:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:35,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491592077] [2020-11-12 12:28:35,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:35,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:28:35,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056237439] [2020-11-12 12:28:35,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:28:35,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:35,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:28:35,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:28:35,532 INFO L87 Difference]: Start difference. First operand 568 states and 625 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-12 12:28:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:35,780 INFO L93 Difference]: Finished difference Result 890 states and 955 transitions. [2020-11-12 12:28:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:28:35,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2020-11-12 12:28:35,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:35,784 INFO L225 Difference]: With dead ends: 890 [2020-11-12 12:28:35,784 INFO L226 Difference]: Without dead ends: 552 [2020-11-12 12:28:35,785 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:28:35,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-11-12 12:28:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 465. [2020-11-12 12:28:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 438 states have (on average 1.1621004566210045) internal successors, (509), 464 states have internal predecessors, (509), 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) [2020-11-12 12:28:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 509 transitions. [2020-11-12 12:28:35,801 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 509 transitions. Word has length 40 [2020-11-12 12:28:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:35,802 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 509 transitions. [2020-11-12 12:28:35,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2020-11-12 12:28:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 509 transitions. [2020-11-12 12:28:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 12:28:35,804 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:35,804 INFO L494 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] [2020-11-12 12:28:35,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:28:35,804 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:35,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1145540231, now seen corresponding path program 1 times [2020-11-12 12:28:35,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:35,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108796644] [2020-11-12 12:28:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:36,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108796644] [2020-11-12 12:28:36,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:36,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:28:36,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891068540] [2020-11-12 12:28:36,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:28:36,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:36,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:28:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:28:36,032 INFO L87 Difference]: Start difference. First operand 465 states and 509 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2020-11-12 12:28:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:36,192 INFO L93 Difference]: Finished difference Result 317 states and 328 transitions. [2020-11-12 12:28:36,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:28:36,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2020-11-12 12:28:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:36,194 INFO L225 Difference]: With dead ends: 317 [2020-11-12 12:28:36,194 INFO L226 Difference]: Without dead ends: 159 [2020-11-12 12:28:36,195 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:28:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-12 12:28:36,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-11-12 12:28:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 150 states have (on average 1.0533333333333332) internal successors, (158), 158 states have internal predecessors, (158), 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) [2020-11-12 12:28:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 158 transitions. [2020-11-12 12:28:36,200 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 158 transitions. Word has length 40 [2020-11-12 12:28:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:36,201 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 158 transitions. [2020-11-12 12:28:36,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2020-11-12 12:28:36,201 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 158 transitions. [2020-11-12 12:28:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 12:28:36,202 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:28:36,202 INFO L494 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] [2020-11-12 12:28:36,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:28:36,202 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:28:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:28:36,203 INFO L82 PathProgramCache]: Analyzing trace with hash -993276731, now seen corresponding path program 1 times [2020-11-12 12:28:36,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:28:36,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29674863] [2020-11-12 12:28:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:28:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:28:36,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:28:36,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29674863] [2020-11-12 12:28:36,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:28:36,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:28:36,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609746021] [2020-11-12 12:28:36,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:28:36,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:28:36,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:28:36,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:28:36,366 INFO L87 Difference]: Start difference. First operand 159 states and 158 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2020-11-12 12:28:36,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:28:36,463 INFO L93 Difference]: Finished difference Result 123 states and 122 transitions. [2020-11-12 12:28:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:28:36,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2020-11-12 12:28:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:28:36,464 INFO L225 Difference]: With dead ends: 123 [2020-11-12 12:28:36,464 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:28:36,464 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:28:36,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:28:36,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:28:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:28:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:28:36,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-12 12:28:36,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:28:36,466 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:28:36,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2020-11-12 12:28:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:28:36,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:28:36,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:28:36,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:28:36 BasicIcfg [2020-11-12 12:28:36,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:28:36,474 INFO L168 Benchmark]: Toolchain (without parser) took 4694.74 ms. Allocated memory is still 310.4 MB. Free memory was 284.9 MB in the beginning and 206.4 MB in the end (delta: 78.5 MB). Peak memory consumption was 79.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:28:36,475 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 310.4 MB. Free memory was 281.5 MB in the beginning and 281.4 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:28:36,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.85 ms. Allocated memory is still 310.4 MB. Free memory was 284.2 MB in the beginning and 284.1 MB in the end (delta: 133.3 kB). Peak memory consumption was 28.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:28:36,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.92 ms. Allocated memory is still 310.4 MB. Free memory was 284.1 MB in the beginning and 283.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:28:36,477 INFO L168 Benchmark]: Boogie Preprocessor took 60.11 ms. Allocated memory is still 310.4 MB. Free memory was 283.0 MB in the beginning and 280.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:28:36,478 INFO L168 Benchmark]: RCFGBuilder took 522.59 ms. Allocated memory is still 310.4 MB. Free memory was 280.9 MB in the beginning and 261.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:28:36,479 INFO L168 Benchmark]: TraceAbstraction took 3258.71 ms. Allocated memory is still 310.4 MB. Free memory was 261.0 MB in the beginning and 206.4 MB in the end (delta: 54.6 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:28:36,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 310.4 MB. Free memory was 281.5 MB in the beginning and 281.4 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 754.85 ms. Allocated memory is still 310.4 MB. Free memory was 284.2 MB in the beginning and 284.1 MB in the end (delta: 133.3 kB). Peak memory consumption was 28.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 80.92 ms. Allocated memory is still 310.4 MB. Free memory was 284.1 MB in the beginning and 283.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.11 ms. Allocated memory is still 310.4 MB. Free memory was 283.0 MB in the beginning and 280.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 522.59 ms. Allocated memory is still 310.4 MB. Free memory was 280.9 MB in the beginning and 261.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3258.71 ms. Allocated memory is still 310.4 MB. Free memory was 261.0 MB in the beginning and 206.4 MB in the end (delta: 54.6 MB). Peak memory consumption was 55.7 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 251 SDtfs, 261 SDslu, 924 SDs, 0 SdLazy, 117 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4058occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 18861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...