/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/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:45:54,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:45:54,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:45:54,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:45:54,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:45:54,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:45:54,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:45:54,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:45:54,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:45:54,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:45:54,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:45:54,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:45:54,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:45:54,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:45:54,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:45:54,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:45:54,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:45:54,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:45:54,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:45:54,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:45:54,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:45:54,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:45:54,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:45:54,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:45:54,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:45:54,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:45:54,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:45:54,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:45:54,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:45:54,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:45:54,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:45:54,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:45:54,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:45:54,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:45:54,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:45:54,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:45:54,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:45:54,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:45:54,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:45:54,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:45:54,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:45:54,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-17 23:45:55,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:45:55,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:45:55,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:45:55,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:45:55,024 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:45:55,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:45:55,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:45:55,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:45:55,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:45:55,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:45:55,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:45:55,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:45:55,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:45:55,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:45:55,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:45:55,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:45:55,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:45:55,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:45:55,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:45:55,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:45:55,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:45:55,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:45:55,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:45:55,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:45:55,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:45:55,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:45:55,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:45:55,031 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:45:55,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:45:55,031 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:45:55,032 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:45:55,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:45:55,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:45:55,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:45:55,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:45:55,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:45:55,525 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:45:55,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-12-17 23:45:55,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9908f137e/482e798a447b4057bad10de0e3a66252/FLAGbae7ff687 [2020-12-17 23:45:56,400 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:45:56,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-12-17 23:45:56,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9908f137e/482e798a447b4057bad10de0e3a66252/FLAGbae7ff687 [2020-12-17 23:45:56,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9908f137e/482e798a447b4057bad10de0e3a66252 [2020-12-17 23:45:56,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:45:56,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:45:56,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:45:56,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:45:56,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:45:56,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:45:56" (1/1) ... [2020-12-17 23:45:56,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40acae4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:56, skipping insertion in model container [2020-12-17 23:45:56,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:45:56" (1/1) ... [2020-12-17 23:45:56,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:45:56,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:45:57,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:45:57,162 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:45:57,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:45:57,392 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:45:57,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57 WrapperNode [2020-12-17 23:45:57,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:45:57,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:45:57,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:45:57,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:45:57,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:45:57,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:45:57,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:45:57,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:45:57,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... [2020-12-17 23:45:57,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:45:57,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:45:57,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:45:57,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:45:57,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:45:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:45:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:45:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:45:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:45:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:45:57,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:45:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:45:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:45:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:45:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:45:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:45:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:45:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:45:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:45:57,597 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:45:58,169 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:45:58,170 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:45:58,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:58 BoogieIcfgContainer [2020-12-17 23:45:58,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:45:58,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:45:58,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:45:58,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:45:58,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:45:56" (1/3) ... [2020-12-17 23:45:58,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3265089c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:58, skipping insertion in model container [2020-12-17 23:45:58,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:45:57" (2/3) ... [2020-12-17 23:45:58,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3265089c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:45:58, skipping insertion in model container [2020-12-17 23:45:58,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:45:58" (3/3) ... [2020-12-17 23:45:58,182 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-12-17 23:45:58,201 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:45:58,201 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:45:58,206 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:45:58,207 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:45:58,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,254 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,254 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,255 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,255 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,256 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,265 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,266 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,267 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,268 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,268 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,268 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,269 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,270 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,270 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,270 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:45:58,301 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:45:58,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:45:58,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:45:58,361 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:45:58,361 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:45:58,361 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:45:58,361 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:45:58,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:45:58,362 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:45:58,362 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:45:58,380 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-12-17 23:45:59,404 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 23:45:59,453 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 23:45:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:45:59,507 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:45:59,508 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 23:45:59,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:45:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:45:59,516 INFO L82 PathProgramCache]: Analyzing trace with hash 143249805, now seen corresponding path program 1 times [2020-12-17 23:45:59,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:45:59,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298580836] [2020-12-17 23:45:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:45:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:00,071 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 23:46:00,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298580836] [2020-12-17 23:46:00,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:00,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:00,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700364863] [2020-12-17 23:46:00,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:00,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:00,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:00,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:00,168 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 23:46:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:00,632 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-12-17 23:46:00,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:46:00,634 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 23:46:00,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:00,638 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 23:46:00,638 INFO L78 Accepts]: Start accepts. Automaton has 12200 states and 42464 transitions. Word has length 42 [2020-12-17 23:46:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:00,641 INFO L481 AbstractCegarLoop]: Abstraction has 12200 states and 42464 transitions. [2020-12-17 23:46:00,641 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 23:46:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand 12200 states and 42464 transitions. [2020-12-17 23:46:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:46:00,732 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:00,739 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] [2020-12-17 23:46:00,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:46:00,740 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:00,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:00,741 INFO L82 PathProgramCache]: Analyzing trace with hash -521439444, now seen corresponding path program 1 times [2020-12-17 23:46:00,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:00,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667570749] [2020-12-17 23:46:00,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:00,953 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 23:46:00,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667570749] [2020-12-17 23:46:00,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:00,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:00,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085606385] [2020-12-17 23:46:00,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:00,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:00,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:00,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:00,958 INFO L87 Difference]: Start difference. First operand 12200 states and 42464 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:01,479 INFO L93 Difference]: Finished difference Result 16820 states and 57820 transitions. [2020-12-17 23:46:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-17 23:46:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:01,481 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 23:46:01,481 INFO L78 Accepts]: Start accepts. Automaton has 16820 states and 57820 transitions. Word has length 44 [2020-12-17 23:46:01,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:01,482 INFO L481 AbstractCegarLoop]: Abstraction has 16820 states and 57820 transitions. [2020-12-17 23:46:01,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 16820 states and 57820 transitions. [2020-12-17 23:46:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:46:01,516 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:01,516 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 23:46:01,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:46:01,517 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:01,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1701093113, now seen corresponding path program 1 times [2020-12-17 23:46:01,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:01,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952199751] [2020-12-17 23:46:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:01,688 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 23:46:01,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952199751] [2020-12-17 23:46:01,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:01,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:01,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347636543] [2020-12-17 23:46:01,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:01,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:01,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:01,691 INFO L87 Difference]: Start difference. First operand 16820 states and 57820 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 23:46:02,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:02,199 INFO L93 Difference]: Finished difference Result 28500 states and 96204 transitions. [2020-12-17 23:46:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:02,200 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 23:46:02,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:02,201 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 23:46:02,201 INFO L78 Accepts]: Start accepts. Automaton has 28500 states and 96204 transitions. Word has length 47 [2020-12-17 23:46:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:02,202 INFO L481 AbstractCegarLoop]: Abstraction has 28500 states and 96204 transitions. [2020-12-17 23:46:02,202 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 23:46:02,202 INFO L276 IsEmpty]: Start isEmpty. Operand 28500 states and 96204 transitions. [2020-12-17 23:46:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:46:02,261 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:02,262 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 23:46:02,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:46:02,262 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1947575922, now seen corresponding path program 1 times [2020-12-17 23:46:02,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:02,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129113828] [2020-12-17 23:46:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:02,532 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2020-12-17 23:46:02,581 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 23:46:02,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129113828] [2020-12-17 23:46:02,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:02,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:02,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028576932] [2020-12-17 23:46:02,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:02,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:02,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:02,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:02,585 INFO L87 Difference]: Start difference. First operand 28500 states and 96204 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 23:46:03,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:03,013 INFO L93 Difference]: Finished difference Result 26797 states and 88385 transitions. [2020-12-17 23:46:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:46:03,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 23:46:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:03,015 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:46:03,015 INFO L78 Accepts]: Start accepts. Automaton has 26797 states and 88385 transitions. Word has length 50 [2020-12-17 23:46:03,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:03,016 INFO L481 AbstractCegarLoop]: Abstraction has 26797 states and 88385 transitions. [2020-12-17 23:46:03,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 23:46:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 26797 states and 88385 transitions. [2020-12-17 23:46:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:46:03,094 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:03,095 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:03,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:46:03,095 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:03,096 INFO L82 PathProgramCache]: Analyzing trace with hash 58790281, now seen corresponding path program 1 times [2020-12-17 23:46:03,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:03,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16955649] [2020-12-17 23:46:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:03,316 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2020-12-17 23:46:03,370 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 23:46:03,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16955649] [2020-12-17 23:46:03,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:03,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:03,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366126952] [2020-12-17 23:46:03,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:03,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:03,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:03,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:03,375 INFO L87 Difference]: Start difference. First operand 26797 states and 88385 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:03,746 INFO L93 Difference]: Finished difference Result 18052 states and 57853 transitions. [2020-12-17 23:46:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-12-17 23:46:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:03,748 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:46:03,749 INFO L78 Accepts]: Start accepts. Automaton has 18052 states and 57853 transitions. Word has length 51 [2020-12-17 23:46:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:03,751 INFO L481 AbstractCegarLoop]: Abstraction has 18052 states and 57853 transitions. [2020-12-17 23:46:03,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:03,752 INFO L276 IsEmpty]: Start isEmpty. Operand 18052 states and 57853 transitions. [2020-12-17 23:46:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:46:03,787 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:03,788 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:03,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:46:03,789 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:03,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1533825064, now seen corresponding path program 1 times [2020-12-17 23:46:03,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:03,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060525824] [2020-12-17 23:46:03,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:04,015 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 23:46:04,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060525824] [2020-12-17 23:46:04,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:04,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:46:04,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738071465] [2020-12-17 23:46:04,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:46:04,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:04,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:46:04,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:46:04,019 INFO L87 Difference]: Start difference. First operand 18052 states and 57853 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 23:46:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:04,593 INFO L93 Difference]: Finished difference Result 12508 states and 39598 transitions. [2020-12-17 23:46:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:46:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2020-12-17 23:46:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:04,594 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:46:04,594 INFO L78 Accepts]: Start accepts. Automaton has 12508 states and 39598 transitions. Word has length 52 [2020-12-17 23:46:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:04,595 INFO L481 AbstractCegarLoop]: Abstraction has 12508 states and 39598 transitions. [2020-12-17 23:46:04,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 23:46:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 12508 states and 39598 transitions. [2020-12-17 23:46:04,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:46:04,617 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:04,617 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:46:04,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:46:04,618 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:04,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:04,618 INFO L82 PathProgramCache]: Analyzing trace with hash 2090541767, now seen corresponding path program 1 times [2020-12-17 23:46:04,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:04,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462408662] [2020-12-17 23:46:04,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:04,741 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 23:46:04,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462408662] [2020-12-17 23:46:04,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:04,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:04,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311572595] [2020-12-17 23:46:04,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:04,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:04,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:04,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:04,744 INFO L87 Difference]: Start difference. First operand 12508 states and 39598 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:04,936 INFO L93 Difference]: Finished difference Result 18640 states and 58534 transitions. [2020-12-17 23:46:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-17 23:46:04,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-12-17 23:46:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:04,938 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:46:04,938 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 58534 transitions. Word has length 54 [2020-12-17 23:46:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:04,939 INFO L481 AbstractCegarLoop]: Abstraction has 18640 states and 58534 transitions. [2020-12-17 23:46:04,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 58534 transitions. [2020-12-17 23:46:05,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:46:05,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:46:05,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:46:05 BasicIcfg [2020-12-17 23:46:05,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:46:05,185 INFO L168 Benchmark]: Toolchain (without parser) took 8489.47 ms. Allocated memory was 302.0 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 276.0 MB in the beginning and 2.6 GB in the end (delta: -2.3 GB). Peak memory consumption was 361.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:05,197 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:46:05,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.21 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:05,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.19 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:46:05,203 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 270.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:05,207 INFO L168 Benchmark]: RCFGBuilder took 679.90 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 247.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:05,211 INFO L168 Benchmark]: TraceAbstraction took 7002.73 ms. Allocated memory was 302.0 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 247.2 MB in the beginning and 2.6 GB in the end (delta: -2.3 GB). Peak memory consumption was 332.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:05,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 270.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 696.21 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 69.19 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.4 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 270.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 679.90 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 247.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7002.73 ms. Allocated memory was 302.0 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 247.2 MB in the beginning and 2.6 GB in the end (delta: -2.3 GB). Peak memory consumption was 332.1 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: 6.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 736 SDtfs, 1635 SDslu, 2628 SDs, 0 SdLazy, 309 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28500occurred in iteration=3, 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, 1.3s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 41977 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...