/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:42:48,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:42:48,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:42:48,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:42:48,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:42:48,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:42:48,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:42:48,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:42:48,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:42:48,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:42:48,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:42:48,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:42:48,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:42:48,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:42:48,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:42:48,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:42:48,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:42:48,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:42:48,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:42:48,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:42:48,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:42:48,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:42:48,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:42:48,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:42:48,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:42:48,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:42:48,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:42:48,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:42:48,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:42:48,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:42:48,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:42:48,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:42:48,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:42:48,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:42:48,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:42:48,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:42:48,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-17 23:42:48,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:42:48,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:42:48,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:42:48,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:42:48,424 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:42:48,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:42:48,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:42:48,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:42:48,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:42:48,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:42:48,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:42:48,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:42:48,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:42:48,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:42:48,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:42:48,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:42:48,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:42:48,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:42:48,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:42:48,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:42:48,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:42:48,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:42:48,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:42:48,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:42:48,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:42:48,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:42:48,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:42:48,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:42:48,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:42:48,432 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:42:48,433 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:42:48,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:42:48,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:42:48,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:42:48,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:42:48,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:42:48,917 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:42:48,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-12-17 23:42:48,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b0c109/846761ad14c9410bbe69c23d8c27dc9e/FLAGced1e7bd2 [2020-12-17 23:42:49,749 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:42:49,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-12-17 23:42:49,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b0c109/846761ad14c9410bbe69c23d8c27dc9e/FLAGced1e7bd2 [2020-12-17 23:42:49,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b0c109/846761ad14c9410bbe69c23d8c27dc9e [2020-12-17 23:42:49,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:42:49,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:42:49,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:42:49,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:42:49,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:42:49,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:42:49" (1/1) ... [2020-12-17 23:42:49,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572707ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:49, skipping insertion in model container [2020-12-17 23:42:49,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:42:49" (1/1) ... [2020-12-17 23:42:49,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:42:50,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:42:50,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:42:50,454 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:42:50,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:42:50,593 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:42:50,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50 WrapperNode [2020-12-17 23:42:50,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:42:50,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:42:50,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:42:50,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:42:50,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:42:50,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:42:50,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:42:50,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:42:50,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... [2020-12-17 23:42:50,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:42:50,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:42:50,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:42:50,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:42:50,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:42:50,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:42:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:42:50,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:42:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:42:50,846 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:42:50,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:42:50,847 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:42:50,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:42:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:42:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:42:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:42:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:42:50,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:42:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:42:50,851 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:42:51,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:42:51,345 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:42:51,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:42:51 BoogieIcfgContainer [2020-12-17 23:42:51,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:42:51,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:42:51,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:42:51,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:42:51,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:42:49" (1/3) ... [2020-12-17 23:42:51,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef6046b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:42:51, skipping insertion in model container [2020-12-17 23:42:51,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:42:50" (2/3) ... [2020-12-17 23:42:51,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef6046b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:42:51, skipping insertion in model container [2020-12-17 23:42:51,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:42:51" (3/3) ... [2020-12-17 23:42:51,357 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-12-17 23:42:51,375 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:42:51,375 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:42:51,380 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:42:51,381 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:42:51,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,415 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,416 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,416 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,418 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,423 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,423 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,427 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,428 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,436 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,436 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,437 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,442 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:42:51,444 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:42:51,460 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:42:51,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:42:51,489 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:42:51,489 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:42:51,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:42:51,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:42:51,490 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:42:51,490 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:42:51,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:42:51,505 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-12-17 23:42:52,508 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) [2020-12-17 23:42:52,549 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) [2020-12-17 23:42:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:42:52,609 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:42:52,613 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] [2020-12-17 23:42:52,614 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:42:52,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:42:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-12-17 23:42:52,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:42:52,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129744496] [2020-12-17 23:42:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:42:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:42:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:42:53,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129744496] [2020-12-17 23:42:53,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:42:53,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:42:53,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504273468] [2020-12-17 23:42:53,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:42:53,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:42:53,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:42:53,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:42:53,268 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) [2020-12-17 23:42:53,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:42:53,713 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2020-12-17 23:42:53,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:42:53,715 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 [2020-12-17 23:42:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:42:53,718 INFO L763 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 [2020-12-17 23:42:53,719 INFO L78 Accepts]: Start accepts. Automaton has 11318 states and 39237 transitions. Word has length 42 [2020-12-17 23:42:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:42:53,721 INFO L481 AbstractCegarLoop]: Abstraction has 11318 states and 39237 transitions. [2020-12-17 23:42:53,721 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) [2020-12-17 23:42:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 11318 states and 39237 transitions. [2020-12-17 23:42:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:42:53,750 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:42:53,751 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:42:53,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:42:53,751 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:42:53,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:42:53,756 INFO L82 PathProgramCache]: Analyzing trace with hash 348820663, now seen corresponding path program 1 times [2020-12-17 23:42:53,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:42:53,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899715415] [2020-12-17 23:42:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:42:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:42:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:42:53,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899715415] [2020-12-17 23:42:53,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:42:53,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:42:53,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602716204] [2020-12-17 23:42:53,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:42:53,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:42:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:42:53,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:42:53,958 INFO L87 Difference]: Start difference. First operand 11318 states and 39237 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:54,179 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-17 23:42:54,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:42:54,612 INFO L93 Difference]: Finished difference Result 17414 states and 59737 transitions. [2020-12-17 23:42:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:42:54,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-12-17 23:42:54,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:42:54,614 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:42:54,615 INFO L78 Accepts]: Start accepts. Automaton has 17414 states and 59737 transitions. Word has length 45 [2020-12-17 23:42:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:42:54,615 INFO L481 AbstractCegarLoop]: Abstraction has 17414 states and 59737 transitions. [2020-12-17 23:42:54,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 17414 states and 59737 transitions. [2020-12-17 23:42:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:42:54,655 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:42:54,655 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] [2020-12-17 23:42:54,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:42:54,656 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:42:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:42:54,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1147073206, now seen corresponding path program 1 times [2020-12-17 23:42:54,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:42:54,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005127520] [2020-12-17 23:42:54,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:42:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:42:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:42:54,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005127520] [2020-12-17 23:42:54,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:42:54,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:42:54,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395026563] [2020-12-17 23:42:54,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:42:54,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:42:54,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:42:54,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:42:54,982 INFO L87 Difference]: Start difference. First operand 17414 states and 59737 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:42:55,610 INFO L93 Difference]: Finished difference Result 30414 states and 102147 transitions. [2020-12-17 23:42:55,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-17 23:42:55,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-12-17 23:42:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:42:55,616 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-17 23:42:55,616 INFO L78 Accepts]: Start accepts. Automaton has 30414 states and 102147 transitions. Word has length 47 [2020-12-17 23:42:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:42:55,617 INFO L481 AbstractCegarLoop]: Abstraction has 30414 states and 102147 transitions. [2020-12-17 23:42:55,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 30414 states and 102147 transitions. [2020-12-17 23:42:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:42:55,702 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:42:55,702 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:42:55,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:42:55,702 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:42:55,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:42:55,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2020-12-17 23:42:55,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:42:55,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160799219] [2020-12-17 23:42:55,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:42:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:42:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:42:55,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160799219] [2020-12-17 23:42:55,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:42:55,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:42:55,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831450146] [2020-12-17 23:42:55,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:42:55,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:42:55,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:42:55,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:42:55,947 INFO L87 Difference]: Start difference. First operand 30414 states and 102147 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:42:56,587 INFO L93 Difference]: Finished difference Result 40718 states and 136107 transitions. [2020-12-17 23:42:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:42:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:42:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:42:56,588 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:42:56,589 INFO L78 Accepts]: Start accepts. Automaton has 40718 states and 136107 transitions. Word has length 48 [2020-12-17 23:42:56,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:42:56,589 INFO L481 AbstractCegarLoop]: Abstraction has 40718 states and 136107 transitions. [2020-12-17 23:42:56,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:42:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 40718 states and 136107 transitions. [2020-12-17 23:42:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:42:56,636 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:42:56,636 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] [2020-12-17 23:42:56,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:42:56,637 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:42:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:42:56,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 1 times [2020-12-17 23:42:56,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:42:56,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546056500] [2020-12-17 23:42:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:42:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:42:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:42:56,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546056500] [2020-12-17 23:42:56,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:42:56,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:42:56,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755138636] [2020-12-17 23:42:56,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:42:56,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:42:56,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:42:56,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:42:56,811 INFO L87 Difference]: Start difference. First operand 40718 states and 136107 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-12-17 23:42:57,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:42:57,486 INFO L93 Difference]: Finished difference Result 58318 states and 193395 transitions. [2020-12-17 23:42:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:42:57,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2020-12-17 23:42:57,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:42:57,488 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:42:57,488 INFO L78 Accepts]: Start accepts. Automaton has 58318 states and 193395 transitions. Word has length 50 [2020-12-17 23:42:57,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:42:57,489 INFO L481 AbstractCegarLoop]: Abstraction has 58318 states and 193395 transitions. [2020-12-17 23:42:57,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-12-17 23:42:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 58318 states and 193395 transitions. [2020-12-17 23:42:57,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:42:57,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:42:57,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:42:57 BasicIcfg [2020-12-17 23:42:57,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:42:57,833 INFO L168 Benchmark]: Toolchain (without parser) took 7882.13 ms. Allocated memory was 302.0 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 277.4 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 381.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:42:57,833 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:42:57,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.35 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.4 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:42:57,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.51 ms. Allocated memory is still 302.0 MB. Free memory was 246.4 MB in the beginning and 244.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:42:57,836 INFO L168 Benchmark]: Boogie Preprocessor took 31.34 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:42:57,837 INFO L168 Benchmark]: RCFGBuilder took 648.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 261.6 MB in the end (delta: -18.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:42:57,838 INFO L168 Benchmark]: TraceAbstraction took 6480.77 ms. Allocated memory was 302.0 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 260.5 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 364.3 MB. Max. memory is 16.0 GB. [2020-12-17 23:42:57,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 271.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 644.35 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 246.4 MB in the end (delta: 30.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.51 ms. Allocated memory is still 302.0 MB. Free memory was 246.4 MB in the beginning and 244.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.34 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 648.97 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 261.6 MB in the end (delta: -18.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6480.77 ms. Allocated memory was 302.0 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 260.5 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 364.3 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: 6.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 679 SDtfs, 1285 SDslu, 2400 SDs, 0 SdLazy, 253 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58318occurred in iteration=5, 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, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 26855 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...