/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/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:04:04,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:04:04,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:04:04,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:04:04,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:04:04,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:04:04,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:04:04,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:04:04,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:04:04,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:04:04,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:04:04,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:04:04,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:04:04,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:04:04,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:04:04,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:04:04,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:04:04,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:04:04,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:04:04,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:04:04,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:04:04,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:04:04,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:04:04,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:04:04,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-18 00:04:04,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-18 00:04:04,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-18 00:04:04,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-18 00:04:04,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-18 00:04:04,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-18 00:04:04,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:04:04,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:04:04,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:04:04,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:04:04,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:04:04,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:04:04,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:04:04,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:04:04,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:04:04,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:04:04,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:04:04,814 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 [2020-12-18 00:04:04,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:04:04,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:04:04,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:04:04,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:04:04,876 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:04:04,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:04:04,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:04:04,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:04:04,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:04:04,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:04:04,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:04:04,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:04:04,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:04:04,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:04:04,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:04:04,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:04:04,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:04:04,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:04:04,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:04:04,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:04:04,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:04:04,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:04:04,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:04:04,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:04:04,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:04:04,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:04:04,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:04:04,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:04:04,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:04:04,884 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:04:04,885 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:04:04,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:04:05,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:04:05,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:04:05,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:04:05,380 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:04:05,385 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:04:05,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-12-18 00:04:05,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9252097/c1ade71b1b3e40df9d4bb5717d67a407/FLAG86d1610a2 [2020-12-18 00:04:06,157 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:04:06,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-12-18 00:04:06,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9252097/c1ade71b1b3e40df9d4bb5717d67a407/FLAG86d1610a2 [2020-12-18 00:04:06,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9252097/c1ade71b1b3e40df9d4bb5717d67a407 [2020-12-18 00:04:06,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:04:06,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:04:06,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:06,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:04:06,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:04:06,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:06" (1/1) ... [2020-12-18 00:04:06,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d17b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:06, skipping insertion in model container [2020-12-18 00:04:06,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:04:06" (1/1) ... [2020-12-18 00:04:06,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:04:06,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:04:06,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:06,987 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:04:07,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:04:07,200 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:04:07,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07 WrapperNode [2020-12-18 00:04:07,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:04:07,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:07,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:04:07,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:04:07,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:04:07,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:04:07,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:04:07,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:04:07,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (1/1) ... [2020-12-18 00:04:07,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:04:07,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:04:07,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:04:07,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:04:07,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (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 [2020-12-18 00:04:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:04:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:04:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:04:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:04:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:04:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:04:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:04:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:04:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:04:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:04:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:04:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:04:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:04:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:04:07,456 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:04:07,962 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:04:07,963 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:04:07,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:07 BoogieIcfgContainer [2020-12-18 00:04:07,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:04:07,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:04:07,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:04:07,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:04:07,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:04:06" (1/3) ... [2020-12-18 00:04:07,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff16e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:07, skipping insertion in model container [2020-12-18 00:04:07,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:04:07" (2/3) ... [2020-12-18 00:04:07,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff16e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:04:07, skipping insertion in model container [2020-12-18 00:04:07,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:04:07" (3/3) ... [2020-12-18 00:04:07,974 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-12-18 00:04:07,991 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:04:07,991 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:04:07,995 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:04:07,996 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:04:08,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,032 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,036 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,051 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,053 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,056 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,059 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,066 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,067 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:04:08,076 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:04:08,090 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-18 00:04:08,115 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:04:08,115 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:04:08,115 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:04:08,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:04:08,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:04:08,116 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:04:08,116 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:04:08,116 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:04:08,129 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-18 00:04:09,368 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:09,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-18 00:04:09,455 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:09,456 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:04:09,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:09,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:09,463 INFO L82 PathProgramCache]: Analyzing trace with hash 188737205, now seen corresponding path program 1 times [2020-12-18 00:04:09,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:09,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935413937] [2020-12-18 00:04:09,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:10,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935413937] [2020-12-18 00:04:10,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:10,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:04:10,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773908593] [2020-12-18 00:04:10,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:04:10,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:10,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:04:10,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:04:10,109 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:10,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:10,738 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2020-12-18 00:04:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:04:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-12-18 00:04:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:10,745 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:04:10,745 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2020-12-18 00:04:10,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:10,747 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2020-12-18 00:04:10,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:10,748 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2020-12-18 00:04:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-18 00:04:10,774 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:10,775 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] [2020-12-18 00:04:10,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:04:10,776 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:10,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:10,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1390475924, now seen corresponding path program 1 times [2020-12-18 00:04:10,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:10,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602456395] [2020-12-18 00:04:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:11,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602456395] [2020-12-18 00:04:11,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:11,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:11,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485693625] [2020-12-18 00:04:11,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:11,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:11,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:11,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:11,032 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:11,744 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2020-12-18 00:04:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:04:11,745 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 [2020-12-18 00:04:11,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:11,748 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 [2020-12-18 00:04:11,748 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2020-12-18 00:04:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:11,749 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2020-12-18 00:04:11,749 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) [2020-12-18 00:04:11,750 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2020-12-18 00:04:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-18 00:04:11,779 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:11,779 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] [2020-12-18 00:04:11,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:04:11,780 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:11,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:11,782 INFO L82 PathProgramCache]: Analyzing trace with hash -983473269, now seen corresponding path program 1 times [2020-12-18 00:04:11,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:11,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115253774] [2020-12-18 00:04:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:11,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115253774] [2020-12-18 00:04:11,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:11,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:11,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90494810] [2020-12-18 00:04:11,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:11,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:12,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:12,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:12,000 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:12,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:12,746 INFO L93 Difference]: Finished difference Result 28421 states and 96001 transitions. [2020-12-18 00:04:12,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:04:12,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-18 00:04:12,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:12,748 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:04:12,748 INFO L78 Accepts]: Start accepts. Automaton has 28421 states and 96001 transitions. Word has length 48 [2020-12-18 00:04:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:12,749 INFO L481 AbstractCegarLoop]: Abstraction has 28421 states and 96001 transitions. [2020-12-18 00:04:12,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 28421 states and 96001 transitions. [2020-12-18 00:04:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-18 00:04:12,822 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:04:12,823 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:04:12,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:04:12,823 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:04:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:04:12,824 INFO L82 PathProgramCache]: Analyzing trace with hash -514850718, now seen corresponding path program 1 times [2020-12-18 00:04:12,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:04:12,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498161702] [2020-12-18 00:04:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:04:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:04:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:04:13,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498161702] [2020-12-18 00:04:13,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:04:13,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:04:13,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933327538] [2020-12-18 00:04:13,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:04:13,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:04:13,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:04:13,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:04:13,078 INFO L87 Difference]: Start difference. First operand 28421 states and 96001 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:04:13,799 INFO L93 Difference]: Finished difference Result 44301 states and 148115 transitions. [2020-12-18 00:04:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:04:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-12-18 00:04:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:04:13,801 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-18 00:04:13,801 INFO L78 Accepts]: Start accepts. Automaton has 44301 states and 148115 transitions. Word has length 51 [2020-12-18 00:04:13,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:04:13,802 INFO L481 AbstractCegarLoop]: Abstraction has 44301 states and 148115 transitions. [2020-12-18 00:04:13,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:04:13,802 INFO L276 IsEmpty]: Start isEmpty. Operand 44301 states and 148115 transitions. [2020-12-18 00:04:14,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:04:14,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:04:14,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:04:14 BasicIcfg [2020-12-18 00:04:14,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:04:14,087 INFO L168 Benchmark]: Toolchain (without parser) took 7676.19 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 960.5 MB). Free memory was 279.9 MB in the beginning and 1.0 GB in the end (delta: -745.6 MB). Peak memory consumption was 288.6 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,087 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 306.2 MB. Free memory is still 275.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:04:14,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.16 ms. Allocated memory is still 306.2 MB. Free memory was 279.7 MB in the beginning and 276.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.17 ms. Allocated memory is still 306.2 MB. Free memory was 276.1 MB in the beginning and 274.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,091 INFO L168 Benchmark]: Boogie Preprocessor took 64.23 ms. Allocated memory is still 306.2 MB. Free memory was 274.0 MB in the beginning and 272.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,098 INFO L168 Benchmark]: RCFGBuilder took 598.14 ms. Allocated memory is still 306.2 MB. Free memory was 272.8 MB in the beginning and 251.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,099 INFO L168 Benchmark]: TraceAbstraction took 6116.95 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 960.5 MB). Free memory was 250.3 MB in the beginning and 1.0 GB in the end (delta: -775.2 MB). Peak memory consumption was 259.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:04:14,103 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 306.2 MB. Free memory is still 275.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 787.16 ms. Allocated memory is still 306.2 MB. Free memory was 279.7 MB in the beginning and 276.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.17 ms. Allocated memory is still 306.2 MB. Free memory was 276.1 MB in the beginning and 274.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 64.23 ms. Allocated memory is still 306.2 MB. Free memory was 274.0 MB in the beginning and 272.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 598.14 ms. Allocated memory is still 306.2 MB. Free memory was 272.8 MB in the beginning and 251.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6116.95 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 960.5 MB). Free memory was 250.3 MB in the beginning and 1.0 GB in the end (delta: -775.2 MB). Peak memory consumption was 259.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 472 SDtfs, 1170 SDslu, 1715 SDs, 0 SdLazy, 161 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44301occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 23913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...