/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:25:05,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:25:05,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:25:05,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:25:05,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:25:05,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:25:05,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:25:05,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:25:05,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:25:05,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:25:05,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:25:05,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:25:05,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:25:05,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:25:05,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:25:05,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:25:05,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:25:05,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:25:05,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:25:06,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:25:06,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:25:06,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:25:06,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:25:06,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:25:06,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:25:06,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:25:06,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:25:06,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:25:06,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:25:06,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:25:06,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:25:06,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:25:06,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:25:06,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:25:06,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:25:06,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:25:06,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:25:06,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:25:06,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:25:06,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:25:06,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:25:06,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:25:06,103 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:25:06,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:25:06,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:25:06,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:25:06,110 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:25:06,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:25:06,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:25:06,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:25:06,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:25:06,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:25:06,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:25:06,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:25:06,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:25:06,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:25:06,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:25:06,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:25:06,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:25:06,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:25:06,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:25:06,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:25:06,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:25:06,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:25:06,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:25:06,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:25:06,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:25:06,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:25:06,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:25:06,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:25:06,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:25:06,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:25:06,118 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:25:06,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:25:06,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:25:06,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:25:06,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:25:06,591 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:25:06,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-11-12 12:25:06,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3016003b9/483f392b98da42e18c209e688fc0a0f3/FLAG6365a9dc5 [2020-11-12 12:25:07,415 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:25:07,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-11-12 12:25:07,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3016003b9/483f392b98da42e18c209e688fc0a0f3/FLAG6365a9dc5 [2020-11-12 12:25:07,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3016003b9/483f392b98da42e18c209e688fc0a0f3 [2020-11-12 12:25:07,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:25:07,695 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:25:07,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:25:07,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:25:07,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:25:07,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:25:07" (1/1) ... [2020-11-12 12:25:07,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8a271a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:07, skipping insertion in model container [2020-11-12 12:25:07,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:25:07" (1/1) ... [2020-11-12 12:25:07,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:25:07,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:25:08,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:25:08,194 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:25:08,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:25:08,407 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:25:08,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08 WrapperNode [2020-11-12 12:25:08,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:25:08,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:25:08,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:25:08,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:25:08,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:25:08,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:25:08,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:25:08,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:25:08,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... [2020-11-12 12:25:08,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:25:08,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:25:08,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:25:08,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:25:08,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:25:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:25:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:25:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:25:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:25:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:25:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:25:08,590 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:25:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:25:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:25:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:25:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:25:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:25:08,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:25:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:25:08,593 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:25:09,178 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:25:09,178 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:25:09,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:25:09 BoogieIcfgContainer [2020-11-12 12:25:09,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:25:09,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:25:09,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:25:09,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:25:09,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:25:07" (1/3) ... [2020-11-12 12:25:09,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bb088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:25:09, skipping insertion in model container [2020-11-12 12:25:09,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:08" (2/3) ... [2020-11-12 12:25:09,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337bb088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:25:09, skipping insertion in model container [2020-11-12 12:25:09,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:25:09" (3/3) ... [2020-11-12 12:25:09,197 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-11-12 12:25:09,215 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:25:09,215 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:25:09,219 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:25:09,221 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:25:09,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,274 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,307 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,307 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:09,317 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:25:09,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:25:09,358 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:25:09,358 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:25:09,359 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:25:09,359 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:25:09,359 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:25:09,359 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:25:09,359 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:25:09,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:25:09,373 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-12 12:25:10,062 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:10,908 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 842ms [2020-11-12 12:25:10,939 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:11,005 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 28747 states, 26255 states have (on average 1.1880403732622358) internal successors, (31192), 28746 states have internal predecessors, (31192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:11,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 28747 states, 26255 states have (on average 1.1880403732622358) internal successors, (31192), 28746 states have internal predecessors, (31192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:25:11,141 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:11,142 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:11,143 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:11,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1677715490, now seen corresponding path program 1 times [2020-11-12 12:25:11,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:11,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629726410] [2020-11-12 12:25:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:11,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629726410] [2020-11-12 12:25:11,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:11,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:11,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098303327] [2020-11-12 12:25:11,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:11,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:11,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:11,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:11,668 INFO L87 Difference]: Start difference. First operand has 28747 states, 26255 states have (on average 1.1880403732622358) internal successors, (31192), 28746 states have internal predecessors, (31192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:11,937 INFO L93 Difference]: Finished difference Result 11846 states and 13624 transitions. [2020-11-12 12:25:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:25:11,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2020-11-12 12:25:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:11,986 INFO L225 Difference]: With dead ends: 11846 [2020-11-12 12:25:11,986 INFO L226 Difference]: Without dead ends: 3977 [2020-11-12 12:25:11,989 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:25:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2020-11-12 12:25:12,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3977. [2020-11-12 12:25:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 3767 states have (on average 1.3626227767454206) internal successors, (5133), 3976 states have internal predecessors, (5133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5133 transitions. [2020-11-12 12:25:12,302 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5133 transitions. Word has length 41 [2020-11-12 12:25:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:12,303 INFO L481 AbstractCegarLoop]: Abstraction has 3977 states and 5133 transitions. [2020-11-12 12:25:12,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5133 transitions. [2020-11-12 12:25:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:25:12,311 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:12,311 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:12,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:25:12,311 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:12,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:12,312 INFO L82 PathProgramCache]: Analyzing trace with hash 18211169, now seen corresponding path program 1 times [2020-11-12 12:25:12,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:12,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958358165] [2020-11-12 12:25:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:12,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958358165] [2020-11-12 12:25:12,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:12,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:12,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312131580] [2020-11-12 12:25:12,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:12,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:12,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:12,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:12,467 INFO L87 Difference]: Start difference. First operand 3977 states and 5133 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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) [2020-11-12 12:25:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:12,681 INFO L93 Difference]: Finished difference Result 6127 states and 7984 transitions. [2020-11-12 12:25:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:25:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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 [2020-11-12 12:25:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:12,698 INFO L225 Difference]: With dead ends: 6127 [2020-11-12 12:25:12,698 INFO L226 Difference]: Without dead ends: 3332 [2020-11-12 12:25:12,699 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:25:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2020-11-12 12:25:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3332. [2020-11-12 12:25:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3152 states have (on average 1.3115482233502538) internal successors, (4134), 3331 states have internal predecessors, (4134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:12,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4134 transitions. [2020-11-12 12:25:12,850 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4134 transitions. Word has length 43 [2020-11-12 12:25:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:12,851 INFO L481 AbstractCegarLoop]: Abstraction has 3332 states and 4134 transitions. [2020-11-12 12:25:12,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 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) [2020-11-12 12:25:12,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4134 transitions. [2020-11-12 12:25:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:25:12,857 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:12,858 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:12,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:25:12,858 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:12,859 INFO L82 PathProgramCache]: Analyzing trace with hash 484052898, now seen corresponding path program 1 times [2020-11-12 12:25:12,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:12,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268597975] [2020-11-12 12:25:12,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:13,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268597975] [2020-11-12 12:25:13,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:13,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:13,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560630063] [2020-11-12 12:25:13,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:13,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:13,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:13,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:13,101 INFO L87 Difference]: Start difference. First operand 3332 states and 4134 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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) [2020-11-12 12:25:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:13,290 INFO L93 Difference]: Finished difference Result 3644 states and 4312 transitions. [2020-11-12 12:25:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:25:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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 [2020-11-12 12:25:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:13,308 INFO L225 Difference]: With dead ends: 3644 [2020-11-12 12:25:13,308 INFO L226 Difference]: Without dead ends: 3092 [2020-11-12 12:25:13,309 INFO L749 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 [2020-11-12 12:25:13,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2020-11-12 12:25:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 3092. [2020-11-12 12:25:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 2924 states have (on average 1.2845417236662107) internal successors, (3756), 3091 states have internal predecessors, (3756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 3756 transitions. [2020-11-12 12:25:13,402 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 3756 transitions. Word has length 45 [2020-11-12 12:25:13,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:13,403 INFO L481 AbstractCegarLoop]: Abstraction has 3092 states and 3756 transitions. [2020-11-12 12:25:13,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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) [2020-11-12 12:25:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 3756 transitions. [2020-11-12 12:25:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:25:13,409 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:13,409 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:13,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:25:13,410 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:13,412 INFO L82 PathProgramCache]: Analyzing trace with hash 528662536, now seen corresponding path program 1 times [2020-11-12 12:25:13,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:13,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086907483] [2020-11-12 12:25:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:13,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086907483] [2020-11-12 12:25:13,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:13,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:13,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26538529] [2020-11-12 12:25:13,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:13,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:13,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:13,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:13,625 INFO L87 Difference]: Start difference. First operand 3092 states and 3756 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:13,818 INFO L93 Difference]: Finished difference Result 2722 states and 3121 transitions. [2020-11-12 12:25:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:25:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-11-12 12:25:13,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:13,830 INFO L225 Difference]: With dead ends: 2722 [2020-11-12 12:25:13,831 INFO L226 Difference]: Without dead ends: 2017 [2020-11-12 12:25:13,831 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:25:13,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2020-11-12 12:25:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2017. [2020-11-12 12:25:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1909 states have (on average 1.1927710843373494) internal successors, (2277), 2016 states have internal predecessors, (2277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2277 transitions. [2020-11-12 12:25:13,910 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2277 transitions. Word has length 46 [2020-11-12 12:25:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:13,911 INFO L481 AbstractCegarLoop]: Abstraction has 2017 states and 2277 transitions. [2020-11-12 12:25:13,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2277 transitions. [2020-11-12 12:25:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:25:13,917 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:13,917 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:13,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:25:13,918 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:13,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:13,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1588903815, now seen corresponding path program 1 times [2020-11-12 12:25:13,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:13,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398380374] [2020-11-12 12:25:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:14,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398380374] [2020-11-12 12:25:14,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:14,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:25:14,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024563950] [2020-11-12 12:25:14,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:25:14,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:14,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:25:14,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:25:14,122 INFO L87 Difference]: Start difference. First operand 2017 states and 2277 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 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) [2020-11-12 12:25:14,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:14,309 INFO L93 Difference]: Finished difference Result 1280 states and 1405 transitions. [2020-11-12 12:25:14,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:25:14,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 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 [2020-11-12 12:25:14,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:14,314 INFO L225 Difference]: With dead ends: 1280 [2020-11-12 12:25:14,314 INFO L226 Difference]: Without dead ends: 616 [2020-11-12 12:25:14,314 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:25:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-11-12 12:25:14,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2020-11-12 12:25:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 589 states have (on average 1.0950764006791172) internal successors, (645), 615 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 645 transitions. [2020-11-12 12:25:14,332 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 645 transitions. Word has length 48 [2020-11-12 12:25:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:14,332 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 645 transitions. [2020-11-12 12:25:14,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 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) [2020-11-12 12:25:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 645 transitions. [2020-11-12 12:25:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:25:14,335 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:14,335 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:14,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:25:14,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:14,336 INFO L82 PathProgramCache]: Analyzing trace with hash 193448871, now seen corresponding path program 1 times [2020-11-12 12:25:14,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:14,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069902663] [2020-11-12 12:25:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:14,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069902663] [2020-11-12 12:25:14,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:14,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:14,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271228469] [2020-11-12 12:25:14,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:14,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:14,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:14,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:14,477 INFO L87 Difference]: Start difference. First operand 616 states and 645 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2020-11-12 12:25:14,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:14,585 INFO L93 Difference]: Finished difference Result 889 states and 909 transitions. [2020-11-12 12:25:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:25:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 [2020-11-12 12:25:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:14,589 INFO L225 Difference]: With dead ends: 889 [2020-11-12 12:25:14,590 INFO L226 Difference]: Without dead ends: 447 [2020-11-12 12:25:14,590 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:25:14,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-11-12 12:25:14,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-11-12 12:25:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 420 states have (on average 1.061904761904762) internal successors, (446), 446 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 446 transitions. [2020-11-12 12:25:14,601 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 446 transitions. Word has length 52 [2020-11-12 12:25:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:14,602 INFO L481 AbstractCegarLoop]: Abstraction has 447 states and 446 transitions. [2020-11-12 12:25:14,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2020-11-12 12:25:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 446 transitions. [2020-11-12 12:25:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:25:14,603 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:14,604 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:14,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:25:14,604 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:14,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:14,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1184360591, now seen corresponding path program 2 times [2020-11-12 12:25:14,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:14,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515294282] [2020-11-12 12:25:14,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:14,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515294282] [2020-11-12 12:25:14,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:14,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:14,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973004650] [2020-11-12 12:25:14,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:14,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:14,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:14,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:14,738 INFO L87 Difference]: Start difference. First operand 447 states and 446 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2020-11-12 12:25:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:14,804 INFO L93 Difference]: Finished difference Result 339 states and 338 transitions. [2020-11-12 12:25:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-12 12:25:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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 [2020-11-12 12:25:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:14,805 INFO L225 Difference]: With dead ends: 339 [2020-11-12 12:25:14,805 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:25:14,806 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:25:14,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:25:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:25:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:25:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:25:14,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2020-11-12 12:25:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:14,807 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:25:14,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 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) [2020-11-12 12:25:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:25:14,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:25:14,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:25:14,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:25:14 BasicIcfg [2020-11-12 12:25:14,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:25:14,816 INFO L168 Benchmark]: Toolchain (without parser) took 7125.58 ms. Allocated memory was 302.0 MB in the beginning and 572.5 MB in the end (delta: 270.5 MB). Free memory was 276.4 MB in the beginning and 240.1 MB in the end (delta: 36.3 MB). Peak memory consumption was 309.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,817 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:25:14,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.57 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.23 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,819 INFO L168 Benchmark]: Boogie Preprocessor took 34.33 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 271.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,820 INFO L168 Benchmark]: RCFGBuilder took 682.18 ms. Allocated memory is still 302.0 MB. Free memory was 271.2 MB in the beginning and 249.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,821 INFO L168 Benchmark]: TraceAbstraction took 5625.15 ms. Allocated memory was 302.0 MB in the beginning and 572.5 MB in the end (delta: 270.5 MB). Free memory was 248.9 MB in the beginning and 240.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 280.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:14,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 711.57 ms. Allocated memory is still 302.0 MB. Free memory was 275.8 MB in the beginning and 274.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.23 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.33 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 271.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 682.18 ms. Allocated memory is still 302.0 MB. Free memory was 271.2 MB in the beginning and 249.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5625.15 ms. Allocated memory was 302.0 MB in the beginning and 572.5 MB in the end (delta: 270.5 MB). Free memory was 248.9 MB in the beginning and 240.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 280.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 441 SDtfs, 613 SDslu, 1683 SDs, 0 SdLazy, 210 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28747occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 38698 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...