/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:46:33,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:46:33,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:46:33,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:46:33,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:46:33,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:46:33,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:46:33,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:46:33,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:46:33,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:46:33,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:46:33,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:46:33,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:46:33,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:46:33,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:46:33,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:46:33,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:46:33,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:46:33,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:46:33,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:46:33,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:46:33,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:46:33,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:46:33,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:46:33,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:46:33,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:46:33,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:46:33,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:46:33,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:46:33,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:46:33,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:46:33,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:46:33,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:46:33,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:46:33,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:46:33,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:46:33,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:46:33,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:46:33,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:46:33,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:46:33,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:46:33,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:46:33,823 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:46:33,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:46:33,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:46:33,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:46:33,829 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:46:33,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:46:33,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:46:33,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:46:33,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:46:33,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:46:33,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:46:33,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:46:33,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:46:33,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:46:33,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:46:33,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:46:33,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:46:33,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:46:33,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:46:33,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:46:33,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:46:33,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:46:33,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:46:33,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:46:33,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:46:33,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:46:33,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:46:33,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:46:33,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:46:33,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:46:34,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:46:34,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:46:34,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:46:34,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:46:34,255 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:46:34,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-09 12:46:34,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f913647/f3952fafde834e5ca8336ddf894fb2fc/FLAG85439a762 [2020-11-09 12:46:35,081 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:46:35,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-09 12:46:35,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f913647/f3952fafde834e5ca8336ddf894fb2fc/FLAG85439a762 [2020-11-09 12:46:35,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f913647/f3952fafde834e5ca8336ddf894fb2fc [2020-11-09 12:46:35,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:46:35,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:46:35,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:46:35,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:46:35,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:46:35,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:46:35" (1/1) ... [2020-11-09 12:46:35,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75fa8fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:35, skipping insertion in model container [2020-11-09 12:46:35,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:46:35" (1/1) ... [2020-11-09 12:46:35,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:46:35,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:46:35,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:46:35,927 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:46:36,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:46:36,160 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:46:36,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36 WrapperNode [2020-11-09 12:46:36,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:46:36,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:46:36,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:46:36,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:46:36,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:46:36,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:46:36,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:46:36,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:46:36,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (1/1) ... [2020-11-09 12:46:36,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:46:36,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:46:36,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:46:36,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:46:36,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (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 [2020-11-09 12:46:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:46:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:46:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:46:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:46:36,336 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:46:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:46:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:46:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:46:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:46:36,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:46:36,337 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 12:46:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 12:46:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:46:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:46:36,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:46:36,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:46:36,340 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 12:46:37,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:46:37,005 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:46:37,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:46:37 BoogieIcfgContainer [2020-11-09 12:46:37,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:46:37,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:46:37,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:46:37,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:46:37,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:46:35" (1/3) ... [2020-11-09 12:46:37,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777dd96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:46:37, skipping insertion in model container [2020-11-09 12:46:37,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:46:36" (2/3) ... [2020-11-09 12:46:37,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777dd96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:46:37, skipping insertion in model container [2020-11-09 12:46:37,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:46:37" (3/3) ... [2020-11-09 12:46:37,021 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-11-09 12:46:37,039 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:46:37,039 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:46:37,044 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:46:37,045 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:46:37,104 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,105 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,105 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,106 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,107 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,113 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,114 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,115 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,116 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,119 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,119 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,120 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,120 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,121 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,122 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,123 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,124 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,125 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,126 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,126 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,126 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,140 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,140 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,141 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,141 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,146 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,147 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,150 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,150 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:46:37,154 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:46:37,168 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 12:46:37,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:46:37,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:46:37,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:46:37,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:46:37,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:46:37,216 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:46:37,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:46:37,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:46:37,236 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:46:37,239 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 12:46:37,243 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 12:46:37,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-11-09 12:46:37,323 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-11-09 12:46:37,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:46:37,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 12:46:37,333 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 12:46:39,741 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:46:39,898 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 12:46:41,403 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:46:41,787 WARN L194 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 12:46:41,911 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:46:42,063 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 12:46:42,271 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 12:46:42,433 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-11-09 12:46:42,433 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-11-09 12:46:42,445 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 12:46:42,523 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 12:46:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 12:46:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:46:42,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:42,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:42,542 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:42,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:42,552 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-11-09 12:46:42,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:42,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050522063] [2020-11-09 12:46:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:42,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050522063] [2020-11-09 12:46:42,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:42,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:46:42,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908297522] [2020-11-09 12:46:42,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:46:42,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:42,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:46:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:42,839 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 12:46:42,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:42,937 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 12:46:42,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:46:42,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 12:46:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:42,977 INFO L225 Difference]: With dead ends: 670 [2020-11-09 12:46:42,977 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 12:46:42,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 12:46:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 12:46:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 12:46:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 12:46:43,095 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 12:46:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,097 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 12:46:43,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:46:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 12:46:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:46:43,099 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:46:43,100 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1488897790, now seen corresponding path program 1 times [2020-11-09 12:46:43,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645242726] [2020-11-09 12:46:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645242726] [2020-11-09 12:46:43,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:46:43,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821641432] [2020-11-09 12:46:43,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:46:43,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:46:43,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:46:43,219 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 12:46:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,259 INFO L93 Difference]: Finished difference Result 748 states and 2407 transitions. [2020-11-09 12:46:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:46:43,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:46:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:43,269 INFO L225 Difference]: With dead ends: 748 [2020-11-09 12:46:43,269 INFO L226 Difference]: Without dead ends: 460 [2020-11-09 12:46:43,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:46:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2020-11-09 12:46:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2020-11-09 12:46:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-11-09 12:46:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1467 transitions. [2020-11-09 12:46:43,324 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1467 transitions. Word has length 11 [2020-11-09 12:46:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,330 INFO L481 AbstractCegarLoop]: Abstraction has 460 states and 1467 transitions. [2020-11-09 12:46:43,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:46:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1467 transitions. [2020-11-09 12:46:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:46:43,336 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:46:43,336 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,337 INFO L82 PathProgramCache]: Analyzing trace with hash -647802977, now seen corresponding path program 1 times [2020-11-09 12:46:43,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029456809] [2020-11-09 12:46:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029456809] [2020-11-09 12:46:43,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:46:43,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922408677] [2020-11-09 12:46:43,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:46:43,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:46:43,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:43,419 INFO L87 Difference]: Start difference. First operand 460 states and 1467 transitions. Second operand 3 states. [2020-11-09 12:46:43,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,429 INFO L93 Difference]: Finished difference Result 442 states and 1398 transitions. [2020-11-09 12:46:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:46:43,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 12:46:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:43,433 INFO L225 Difference]: With dead ends: 442 [2020-11-09 12:46:43,434 INFO L226 Difference]: Without dead ends: 442 [2020-11-09 12:46:43,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:43,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-11-09 12:46:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-11-09 12:46:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-11-09 12:46:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1398 transitions. [2020-11-09 12:46:43,453 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1398 transitions. Word has length 12 [2020-11-09 12:46:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,453 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 1398 transitions. [2020-11-09 12:46:43,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:46:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1398 transitions. [2020-11-09 12:46:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:46:43,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:46:43,456 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,457 INFO L82 PathProgramCache]: Analyzing trace with hash -912860165, now seen corresponding path program 1 times [2020-11-09 12:46:43,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494656947] [2020-11-09 12:46:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494656947] [2020-11-09 12:46:43,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:46:43,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950343860] [2020-11-09 12:46:43,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:46:43,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:46:43,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:46:43,551 INFO L87 Difference]: Start difference. First operand 442 states and 1398 transitions. Second operand 4 states. [2020-11-09 12:46:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,589 INFO L93 Difference]: Finished difference Result 788 states and 2333 transitions. [2020-11-09 12:46:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:46:43,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 12:46:43,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:43,593 INFO L225 Difference]: With dead ends: 788 [2020-11-09 12:46:43,594 INFO L226 Difference]: Without dead ends: 412 [2020-11-09 12:46:43,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:46:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-09 12:46:43,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-11-09 12:46:43,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-11-09 12:46:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1087 transitions. [2020-11-09 12:46:43,610 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1087 transitions. Word has length 13 [2020-11-09 12:46:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,610 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1087 transitions. [2020-11-09 12:46:43,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:46:43,610 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1087 transitions. [2020-11-09 12:46:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:46:43,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:46:43,612 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1787336884, now seen corresponding path program 1 times [2020-11-09 12:46:43,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651447439] [2020-11-09 12:46:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651447439] [2020-11-09 12:46:43,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:46:43,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278090895] [2020-11-09 12:46:43,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:46:43,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:46:43,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:46:43,662 INFO L87 Difference]: Start difference. First operand 376 states and 1087 transitions. Second operand 4 states. [2020-11-09 12:46:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,683 INFO L93 Difference]: Finished difference Result 494 states and 1370 transitions. [2020-11-09 12:46:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:46:43,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 12:46:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:43,686 INFO L225 Difference]: With dead ends: 494 [2020-11-09 12:46:43,686 INFO L226 Difference]: Without dead ends: 254 [2020-11-09 12:46:43,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:46:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-09 12:46:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-11-09 12:46:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-09 12:46:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-11-09 12:46:43,697 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 13 [2020-11-09 12:46:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,697 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-11-09 12:46:43,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:46:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-11-09 12:46:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:46:43,698 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:46:43,699 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,699 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 1 times [2020-11-09 12:46:43,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557906590] [2020-11-09 12:46:43,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557906590] [2020-11-09 12:46:43,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:46:43,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796826415] [2020-11-09 12:46:43,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:46:43,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:46:43,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:46:43,784 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 4 states. [2020-11-09 12:46:43,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,822 INFO L93 Difference]: Finished difference Result 315 states and 812 transitions. [2020-11-09 12:46:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:46:43,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 12:46:43,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:43,825 INFO L225 Difference]: With dead ends: 315 [2020-11-09 12:46:43,825 INFO L226 Difference]: Without dead ends: 230 [2020-11-09 12:46:43,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:46:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-09 12:46:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-11-09 12:46:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-09 12:46:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 601 transitions. [2020-11-09 12:46:43,836 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 601 transitions. Word has length 14 [2020-11-09 12:46:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:43,836 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 601 transitions. [2020-11-09 12:46:43,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:46:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 601 transitions. [2020-11-09 12:46:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 12:46:43,837 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:43,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:43,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:46:43,838 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:43,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:43,838 INFO L82 PathProgramCache]: Analyzing trace with hash 243922642, now seen corresponding path program 1 times [2020-11-09 12:46:43,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:43,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547994947] [2020-11-09 12:46:43,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:43,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547994947] [2020-11-09 12:46:43,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:43,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:46:43,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031212643] [2020-11-09 12:46:43,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:46:43,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:43,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:46:43,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:46:43,946 INFO L87 Difference]: Start difference. First operand 230 states and 601 transitions. Second operand 5 states. [2020-11-09 12:46:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:43,998 INFO L93 Difference]: Finished difference Result 246 states and 585 transitions. [2020-11-09 12:46:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:46:43,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-09 12:46:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:44,000 INFO L225 Difference]: With dead ends: 246 [2020-11-09 12:46:44,000 INFO L226 Difference]: Without dead ends: 178 [2020-11-09 12:46:44,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:46:44,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-09 12:46:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-11-09 12:46:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-09 12:46:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-11-09 12:46:44,007 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 15 [2020-11-09 12:46:44,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:44,008 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-11-09 12:46:44,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:46:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-11-09 12:46:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:46:44,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:44,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:44,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:46:44,009 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:44,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:44,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-11-09 12:46:44,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:44,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471517923] [2020-11-09 12:46:44,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:44,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471517923] [2020-11-09 12:46:44,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:44,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:46:44,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739198618] [2020-11-09 12:46:44,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:46:44,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:44,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:46:44,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:46:44,116 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-11-09 12:46:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:44,180 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-11-09 12:46:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:46:44,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 12:46:44,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:44,182 INFO L225 Difference]: With dead ends: 171 [2020-11-09 12:46:44,182 INFO L226 Difference]: Without dead ends: 137 [2020-11-09 12:46:44,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:46:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-09 12:46:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-11-09 12:46:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-09 12:46:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-11-09 12:46:44,188 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-11-09 12:46:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:44,189 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-11-09 12:46:44,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:46:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-11-09 12:46:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 12:46:44,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:44,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:44,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:46:44,190 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:44,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-11-09 12:46:44,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:44,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388673640] [2020-11-09 12:46:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:44,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388673640] [2020-11-09 12:46:44,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:44,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 12:46:44,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699508094] [2020-11-09 12:46:44,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 12:46:44,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:44,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 12:46:44,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:46:44,348 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-11-09 12:46:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:44,425 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-11-09 12:46:44,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 12:46:44,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 12:46:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:44,426 INFO L225 Difference]: With dead ends: 132 [2020-11-09 12:46:44,426 INFO L226 Difference]: Without dead ends: 51 [2020-11-09 12:46:44,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 12:46:44,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-09 12:46:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-09 12:46:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-09 12:46:44,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-11-09 12:46:44,429 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-11-09 12:46:44,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:44,429 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-11-09 12:46:44,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 12:46:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-11-09 12:46:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 12:46:44,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:46:44,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:46:44,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 12:46:44,431 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:46:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:46:44,431 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-11-09 12:46:44,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:46:44,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502654211] [2020-11-09 12:46:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:46:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:46:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 12:46:44,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502654211] [2020-11-09 12:46:44,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:46:44,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:46:44,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072074985] [2020-11-09 12:46:44,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:46:44,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:46:44,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:46:44,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:44,478 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-11-09 12:46:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:46:44,486 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-11-09 12:46:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:46:44,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-11-09 12:46:44,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:46:44,488 INFO L225 Difference]: With dead ends: 50 [2020-11-09 12:46:44,488 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:46:44,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:46:44,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:46:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:46:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:46:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:46:44,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 12:46:44,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:46:44,489 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:46:44,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:46:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:46:44,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:46:44,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 12:46:44,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:46:44 BasicIcfg [2020-11-09 12:46:44,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:46:44,499 INFO L168 Benchmark]: Toolchain (without parser) took 9165.75 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 128.6 MB in the beginning and 165.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 12:46:44,500 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:46:44,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.12 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 114.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2020-11-09 12:46:44,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:46:44,506 INFO L168 Benchmark]: Boogie Preprocessor took 29.82 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 111.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:46:44,507 INFO L168 Benchmark]: RCFGBuilder took 763.36 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 87.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:46:44,507 INFO L168 Benchmark]: TraceAbstraction took 7484.45 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 87.2 MB in the beginning and 165.4 MB in the end (delta: -78.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:46:44,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 818.12 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 114.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.82 ms. Allocated memory is still 151.0 MB. Free memory was 112.7 MB in the beginning and 111.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 763.36 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 87.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7484.45 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 87.2 MB in the beginning and 165.4 MB in the end (delta: -78.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1489 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 54 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 106 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 MoverChecksTotal - 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 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 222 SDtfs, 227 SDslu, 318 SDs, 0 SdLazy, 183 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 5144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...