/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:35:43,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:35:43,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:35:43,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:35:43,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:35:43,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:35:43,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:35:43,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:35:43,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:35:43,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:35:43,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:35:43,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:35:43,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:35:43,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:35:43,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:35:43,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:35:43,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:35:43,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:35:43,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:35:43,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:35:43,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:35:43,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:35:43,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:35:43,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:35:43,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:35:43,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:35:43,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:35:43,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:35:43,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:35:43,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:35:43,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:35:43,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:35:43,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:35:43,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:35:43,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:35:43,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:35:43,135 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:35:43,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:35:43,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:35:43,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:35:43,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:35:43,167 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:35:43,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:35:43,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:35:43,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:35:43,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:35:43,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:35:43,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:35:43,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:35:43,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:35:43,170 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:35:43,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:35:43,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:35:43,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:35:43,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:35:43,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:35:43,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:35:43,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:35:43,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:35:43,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:35:43,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:35:43,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:35:43,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:35:43,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:35:43,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:35:43,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:35:43,174 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:35:43,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:35:43,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:35:43,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:35:43,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:35:43,598 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:35:43,599 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:35:43,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-01-26 17:35:43,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac742004a/f963c220717b4f13952b04f211ed1026/FLAG19d630f3b [2021-01-26 17:35:44,362 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:35:44,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-01-26 17:35:44,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac742004a/f963c220717b4f13952b04f211ed1026/FLAG19d630f3b [2021-01-26 17:35:44,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac742004a/f963c220717b4f13952b04f211ed1026 [2021-01-26 17:35:44,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:35:44,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:35:44,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:35:44,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:35:44,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:35:44,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:35:44" (1/1) ... [2021-01-26 17:35:44,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd118ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:44, skipping insertion in model container [2021-01-26 17:35:44,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:35:44" (1/1) ... [2021-01-26 17:35:44,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:35:44,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:35:45,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:35:45,281 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:35:45,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:35:45,449 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:35:45,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45 WrapperNode [2021-01-26 17:35:45,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:35:45,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:35:45,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:35:45,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:35:45,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:35:45,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:35:45,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:35:45,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:35:45,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... [2021-01-26 17:35:45,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:35:45,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:35:45,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:35:45,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:35:45,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:35:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:35:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:35:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:35:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:35:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:35:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:35:45,632 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:35:46,128 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:35:46,128 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:35:46,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:35:46 BoogieIcfgContainer [2021-01-26 17:35:46,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:35:46,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:35:46,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:35:46,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:35:46,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:35:44" (1/3) ... [2021-01-26 17:35:46,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26bec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:35:46, skipping insertion in model container [2021-01-26 17:35:46,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:35:45" (2/3) ... [2021-01-26 17:35:46,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26bec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:35:46, skipping insertion in model container [2021-01-26 17:35:46,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:35:46" (3/3) ... [2021-01-26 17:35:46,141 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2021-01-26 17:35:46,158 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:35:46,159 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:35:46,162 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:35:46,163 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:35:46,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,198 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,199 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,201 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,202 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,204 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,204 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,205 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,205 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,206 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,214 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,215 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,217 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,218 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,218 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,218 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:46,225 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:35:46,236 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:35:46,261 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:35:46,262 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:35:46,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:35:46,262 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:35:46,262 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:35:46,262 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:35:46,262 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:35:46,263 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:35:46,275 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:35:47,357 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:35:47,453 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:47,454 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] [2021-01-26 17:35:47,454 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:47,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1916858186, now seen corresponding path program 1 times [2021-01-26 17:35:47,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:47,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610493011] [2021-01-26 17:35:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:48,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610493011] [2021-01-26 17:35:48,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:48,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:48,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813799377] [2021-01-26 17:35:48,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:48,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:48,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:48,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:48,131 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:48,528 INFO L93 Difference]: Finished difference Result 13208 states and 46044 transitions. [2021-01-26 17:35:48,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:48,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 17:35:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:48,603 INFO L225 Difference]: With dead ends: 13208 [2021-01-26 17:35:48,604 INFO L226 Difference]: Without dead ends: 5053 [2021-01-26 17:35:48,605 INFO L769 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 [2021-01-26 17:35:48,606 INFO L78 Accepts]: Start accepts. Automaton has 5053 states. Word has length 42 [2021-01-26 17:35:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:48,608 INFO L481 AbstractCegarLoop]: Abstraction has 5053 states. [2021-01-26 17:35:48,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:48,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states. [2021-01-26 17:35:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-26 17:35:48,627 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:48,627 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] [2021-01-26 17:35:48,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:35:48,627 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1520283371, now seen corresponding path program 1 times [2021-01-26 17:35:48,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:48,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561594453] [2021-01-26 17:35:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:48,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561594453] [2021-01-26 17:35:48,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:48,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:48,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864341136] [2021-01-26 17:35:48,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:48,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:48,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:48,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:48,858 INFO L87 Difference]: Start difference. First operand 5053 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2021-01-26 17:35:49,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:49,230 INFO L93 Difference]: Finished difference Result 5785 states and 19401 transitions. [2021-01-26 17:35:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:49,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 [2021-01-26 17:35:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:49,278 INFO L225 Difference]: With dead ends: 5785 [2021-01-26 17:35:49,279 INFO L226 Difference]: Without dead ends: 4413 [2021-01-26 17:35:49,280 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:49,280 INFO L78 Accepts]: Start accepts. Automaton has 4413 states. Word has length 44 [2021-01-26 17:35:49,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:49,281 INFO L481 AbstractCegarLoop]: Abstraction has 4413 states. [2021-01-26 17:35:49,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2021-01-26 17:35:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states. [2021-01-26 17:35:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-26 17:35:49,352 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:49,354 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] [2021-01-26 17:35:49,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:35:49,354 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:49,357 INFO L82 PathProgramCache]: Analyzing trace with hash 44408180, now seen corresponding path program 1 times [2021-01-26 17:35:49,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:49,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864717549] [2021-01-26 17:35:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:49,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864717549] [2021-01-26 17:35:49,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:49,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:49,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562181929] [2021-01-26 17:35:49,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:49,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:49,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:49,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:49,525 INFO L87 Difference]: Start difference. First operand 4413 states. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:49,757 INFO L93 Difference]: Finished difference Result 3801 states and 12185 transitions. [2021-01-26 17:35:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:35:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-01-26 17:35:49,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:49,781 INFO L225 Difference]: With dead ends: 3801 [2021-01-26 17:35:49,782 INFO L226 Difference]: Without dead ends: 2685 [2021-01-26 17:35:49,782 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:35:49,783 INFO L78 Accepts]: Start accepts. Automaton has 2685 states. Word has length 46 [2021-01-26 17:35:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:49,783 INFO L481 AbstractCegarLoop]: Abstraction has 2685 states. [2021-01-26 17:35:49,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states. [2021-01-26 17:35:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:35:49,793 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:49,794 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] [2021-01-26 17:35:49,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:35:49,794 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:49,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1894826698, now seen corresponding path program 1 times [2021-01-26 17:35:49,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:49,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540526182] [2021-01-26 17:35:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:50,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540526182] [2021-01-26 17:35:50,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:50,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:35:50,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137713265] [2021-01-26 17:35:50,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:35:50,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:50,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:35:50,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:35:50,013 INFO L87 Difference]: Start difference. First operand 2685 states. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:50,247 INFO L93 Difference]: Finished difference Result 1821 states and 5501 transitions. [2021-01-26 17:35:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:35:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-01-26 17:35:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:50,261 INFO L225 Difference]: With dead ends: 1821 [2021-01-26 17:35:50,261 INFO L226 Difference]: Without dead ends: 1281 [2021-01-26 17:35:50,262 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:35:50,262 INFO L78 Accepts]: Start accepts. Automaton has 1281 states. Word has length 50 [2021-01-26 17:35:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:50,264 INFO L481 AbstractCegarLoop]: Abstraction has 1281 states. [2021-01-26 17:35:50,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states. [2021-01-26 17:35:50,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:35:50,269 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:50,269 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, 1, 1, 1] [2021-01-26 17:35:50,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:35:50,269 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:50,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:50,272 INFO L82 PathProgramCache]: Analyzing trace with hash -60408392, now seen corresponding path program 1 times [2021-01-26 17:35:50,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:50,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064023224] [2021-01-26 17:35:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:50,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064023224] [2021-01-26 17:35:50,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:50,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:50,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480949256] [2021-01-26 17:35:50,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:50,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:50,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:50,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:50,423 INFO L87 Difference]: Start difference. First operand 1281 states. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:50,514 INFO L93 Difference]: Finished difference Result 1804 states and 5307 transitions. [2021-01-26 17:35:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-26 17:35:50,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-01-26 17:35:50,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:50,530 INFO L225 Difference]: With dead ends: 1804 [2021-01-26 17:35:50,530 INFO L226 Difference]: Without dead ends: 911 [2021-01-26 17:35:50,531 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-26 17:35:50,531 INFO L78 Accepts]: Start accepts. Automaton has 911 states. Word has length 54 [2021-01-26 17:35:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:50,531 INFO L481 AbstractCegarLoop]: Abstraction has 911 states. [2021-01-26 17:35:50,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states. [2021-01-26 17:35:50,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:35:50,543 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:50,543 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, 1, 1, 1] [2021-01-26 17:35:50,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:35:50,544 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:50,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:50,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1912523388, now seen corresponding path program 2 times [2021-01-26 17:35:50,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:50,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613778897] [2021-01-26 17:35:50,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:50,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613778897] [2021-01-26 17:35:50,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:50,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:50,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364444163] [2021-01-26 17:35:50,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:50,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:50,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:50,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:50,722 INFO L87 Difference]: Start difference. First operand 911 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:50,862 INFO L93 Difference]: Finished difference Result 1394 states and 4032 transitions. [2021-01-26 17:35:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:35:50,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-26 17:35:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:50,866 INFO L225 Difference]: With dead ends: 1394 [2021-01-26 17:35:50,866 INFO L226 Difference]: Without dead ends: 731 [2021-01-26 17:35:50,867 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:50,867 INFO L78 Accepts]: Start accepts. Automaton has 731 states. Word has length 54 [2021-01-26 17:35:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:50,867 INFO L481 AbstractCegarLoop]: Abstraction has 731 states. [2021-01-26 17:35:50,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:50,868 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states. [2021-01-26 17:35:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:35:50,870 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:50,870 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, 1, 1, 1] [2021-01-26 17:35:50,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:35:50,871 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:50,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2071801964, now seen corresponding path program 3 times [2021-01-26 17:35:50,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:50,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347502255] [2021-01-26 17:35:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:50,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347502255] [2021-01-26 17:35:50,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:50,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:50,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785646618] [2021-01-26 17:35:50,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:50,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:50,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:50,985 INFO L87 Difference]: Start difference. First operand 731 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:51,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:51,070 INFO L93 Difference]: Finished difference Result 623 states and 1725 transitions. [2021-01-26 17:35:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:35:51,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-26 17:35:51,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:51,070 INFO L225 Difference]: With dead ends: 623 [2021-01-26 17:35:51,071 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:35:51,071 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:51,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-26 17:35:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:51,071 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:35:51,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:35:51,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:35:51,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:35:51,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:35:51 BasicIcfg [2021-01-26 17:35:51,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:35:51,080 INFO L168 Benchmark]: Toolchain (without parser) took 6432.07 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 271.2 MB in the beginning and 562.3 MB in the end (delta: -291.1 MB). Peak memory consumption was 97.8 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:51,080 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:35:51,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.51 ms. Allocated memory is still 302.0 MB. Free memory was 270.2 MB in the beginning and 263.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:51,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 302.0 MB. Free memory was 263.5 MB in the beginning and 261.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:51,083 INFO L168 Benchmark]: Boogie Preprocessor took 29.76 ms. Allocated memory is still 302.0 MB. Free memory was 261.4 MB in the beginning and 260.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:35:51,083 INFO L168 Benchmark]: RCFGBuilder took 598.89 ms. Allocated memory is still 302.0 MB. Free memory was 259.3 MB in the beginning and 236.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:51,084 INFO L168 Benchmark]: TraceAbstraction took 4944.52 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 235.2 MB in the beginning and 562.3 MB in the end (delta: -327.1 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:51,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 783.51 ms. Allocated memory is still 302.0 MB. Free memory was 270.2 MB in the beginning and 263.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 302.0 MB. Free memory was 263.5 MB in the beginning and 261.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.76 ms. Allocated memory is still 302.0 MB. Free memory was 261.4 MB in the beginning and 260.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 598.89 ms. Allocated memory is still 302.0 MB. Free memory was 259.3 MB in the beginning and 236.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4944.52 ms. Allocated memory was 302.0 MB in the beginning and 690.0 MB in the end (delta: 388.0 MB). Free memory was 235.2 MB in the beginning and 562.3 MB in the end (delta: -327.1 MB). Peak memory consumption was 64.0 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 638 SDtfs, 878 SDslu, 2143 SDs, 0 SdLazy, 248 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 39631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...