/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/safe036_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:21:46,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:21:46,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:21:46,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:21:46,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:21:46,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:21:46,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:21:46,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:21:46,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:21:46,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:21:46,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:21:46,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:21:46,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:21:46,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:21:46,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:21:46,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:21:46,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:21:46,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:21:46,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:21:46,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:21:46,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:21:46,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:21:46,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:21:46,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:21:46,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:21:46,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:21:46,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:21:46,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:21:46,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:21:46,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:21:46,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:21:46,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:21:46,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:21:46,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:21:46,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:21:46,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:21:46,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:21:46,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:21:46,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:21:46,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:21:46,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:21:46,187 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 [2020-04-17 18:21:46,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:21:46,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:21:46,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:21:46,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:21:46,214 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:21:46,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:21:46,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:21:46,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:21:46,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:21:46,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:21:46,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:21:46,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:21:46,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:21:46,217 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:21:46,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:21:46,218 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:21:46,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:21:46,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:21:46,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:21:46,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:21:46,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:21:46,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:21:46,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:21:46,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 18:21:46,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:21:46,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:21:46,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:21:46,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:21:46,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:21:46,540 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:21:46,541 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-04-17 18:21:46,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5891cae6/d61c229ed11e4892a6ebbe90908e955f/FLAG95d8b846c [2020-04-17 18:21:47,135 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:21:47,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.opt.i [2020-04-17 18:21:47,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5891cae6/d61c229ed11e4892a6ebbe90908e955f/FLAG95d8b846c [2020-04-17 18:21:47,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5891cae6/d61c229ed11e4892a6ebbe90908e955f [2020-04-17 18:21:47,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:21:47,485 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:21:47,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:21:47,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:21:47,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:21:47,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:21:47" (1/1) ... [2020-04-17 18:21:47,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f33b2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:47, skipping insertion in model container [2020-04-17 18:21:47,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:21:47" (1/1) ... [2020-04-17 18:21:47,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:21:47,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:21:48,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:21:48,044 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:21:48,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:21:48,169 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:21:48,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48 WrapperNode [2020-04-17 18:21:48,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:21:48,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:21:48,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:21:48,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:21:48,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:21:48,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:21:48,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:21:48,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:21:48,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (1/1) ... [2020-04-17 18:21:48,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:21:48,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:21:48,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:21:48,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:21:48,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (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 [2020-04-17 18:21:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:21:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 18:21:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:21:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:21:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 18:21:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 18:21:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 18:21:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 18:21:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 18:21:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:21:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:21:48,309 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:21:48,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:21:48,674 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 18:21:48,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:21:48 BoogieIcfgContainer [2020-04-17 18:21:48,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:21:48,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:21:48,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:21:48,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:21:48,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:21:47" (1/3) ... [2020-04-17 18:21:48,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa83030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:21:48, skipping insertion in model container [2020-04-17 18:21:48,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:21:48" (2/3) ... [2020-04-17 18:21:48,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa83030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:21:48, skipping insertion in model container [2020-04-17 18:21:48,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:21:48" (3/3) ... [2020-04-17 18:21:48,687 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.opt.i [2020-04-17 18:21:48,697 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:21:48,698 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:21:48,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 18:21:48,705 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:21:48,728 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,729 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,729 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,729 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,730 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,730 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,732 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,732 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,732 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,733 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,737 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,737 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,738 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,738 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,748 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,748 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,749 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:21:48,764 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-17 18:21:48,780 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:21:48,781 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:21:48,781 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:21:48,781 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:21:48,782 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:21:48,782 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:21:48,782 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:21:48,782 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:21:48,796 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-17 18:21:48,798 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-17 18:21:48,837 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-17 18:21:48,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:21:48,842 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-17 18:21:48,844 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-17 18:21:48,863 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-17 18:21:48,863 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:21:48,864 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-17 18:21:48,866 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-17 18:21:48,867 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:21:50,067 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-17 18:21:50,436 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1294 [2020-04-17 18:21:50,437 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-04-17 18:21:50,440 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-17 18:21:50,453 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-17 18:21:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-17 18:21:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-17 18:21:50,464 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:21:50,465 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-17 18:21:50,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:21:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:21:50,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-04-17 18:21:50,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:21:50,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266100780] [2020-04-17 18:21:50,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:21:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:21:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:21:50,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266100780] [2020-04-17 18:21:50,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:21:50,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:21:50,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854975482] [2020-04-17 18:21:50,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:21:50,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:21:50,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:21:50,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:21:50,805 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-04-17 18:21:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:21:50,868 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-04-17 18:21:50,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:21:50,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-04-17 18:21:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:21:50,882 INFO L225 Difference]: With dead ends: 63 [2020-04-17 18:21:50,882 INFO L226 Difference]: Without dead ends: 40 [2020-04-17 18:21:50,884 INFO L678 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 [2020-04-17 18:21:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-04-17 18:21:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-04-17 18:21:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-04-17 18:21:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-04-17 18:21:50,923 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-04-17 18:21:50,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:21:50,923 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-04-17 18:21:50,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:21:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-04-17 18:21:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 18:21:50,924 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:21:50,925 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:21:50,925 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:21:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:21:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-04-17 18:21:50,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:21:50,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703912264] [2020-04-17 18:21:50,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:21:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:21:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:21:51,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703912264] [2020-04-17 18:21:51,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:21:51,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:21:51,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830629378] [2020-04-17 18:21:51,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 18:21:51,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:21:51,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 18:21:51,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:21:51,077 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-04-17 18:21:51,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:21:51,116 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-04-17 18:21:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 18:21:51,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-04-17 18:21:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:21:51,119 INFO L225 Difference]: With dead ends: 35 [2020-04-17 18:21:51,120 INFO L226 Difference]: Without dead ends: 28 [2020-04-17 18:21:51,120 INFO L678 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 [2020-04-17 18:21:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-04-17 18:21:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-04-17 18:21:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-04-17 18:21:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-04-17 18:21:51,126 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-04-17 18:21:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:21:51,126 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-04-17 18:21:51,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 18:21:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-04-17 18:21:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 18:21:51,127 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:21:51,127 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:21:51,127 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:21:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:21:51,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-04-17 18:21:51,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:21:51,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050712471] [2020-04-17 18:21:51,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:21:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:21:51,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:21:51,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050712471] [2020-04-17 18:21:51,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:21:51,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:21:51,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855391727] [2020-04-17 18:21:51,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:21:51,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:21:51,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:21:51,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:21:51,198 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-04-17 18:21:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:21:51,216 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-04-17 18:21:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 18:21:51,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 18:21:51,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:21:51,218 INFO L225 Difference]: With dead ends: 35 [2020-04-17 18:21:51,218 INFO L226 Difference]: Without dead ends: 22 [2020-04-17 18:21:51,219 INFO L678 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 [2020-04-17 18:21:51,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-04-17 18:21:51,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-04-17 18:21:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-04-17 18:21:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-04-17 18:21:51,222 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-04-17 18:21:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:21:51,223 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-04-17 18:21:51,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:21:51,223 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-04-17 18:21:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 18:21:51,223 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:21:51,224 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:21:51,224 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:21:51,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:21:51,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-04-17 18:21:51,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:21:51,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781967189] [2020-04-17 18:21:51,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:21:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:21:51,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:21:51,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781967189] [2020-04-17 18:21:51,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:21:51,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 18:21:51,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998122832] [2020-04-17 18:21:51,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:21:51,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:21:51,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:21:51,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:21:51,275 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-04-17 18:21:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:21:51,288 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-04-17 18:21:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 18:21:51,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 18:21:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:21:51,289 INFO L225 Difference]: With dead ends: 21 [2020-04-17 18:21:51,289 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 18:21:51,289 INFO L678 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 [2020-04-17 18:21:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 18:21:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 18:21:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 18:21:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 18:21:51,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-04-17 18:21:51,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:21:51,291 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 18:21:51,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:21:51,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 18:21:51,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 18:21:51,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:21:51 BasicIcfg [2020-04-17 18:21:51,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:21:51,297 INFO L168 Benchmark]: Toolchain (without parser) took 3833.64 ms. Allocated memory was 142.1 MB in the beginning and 255.3 MB in the end (delta: 113.2 MB). Free memory was 98.2 MB in the beginning and 166.3 MB in the end (delta: -68.1 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,298 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.72 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 96.4 MB in the beginning and 156.3 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.77 ms. Allocated memory is still 199.2 MB. Free memory was 156.3 MB in the beginning and 154.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,301 INFO L168 Benchmark]: Boogie Preprocessor took 23.53 ms. Allocated memory is still 199.2 MB. Free memory was 154.2 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,301 INFO L168 Benchmark]: RCFGBuilder took 435.23 ms. Allocated memory is still 199.2 MB. Free memory was 152.8 MB in the beginning and 133.0 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,302 INFO L168 Benchmark]: TraceAbstraction took 2615.93 ms. Allocated memory was 199.2 MB in the beginning and 255.3 MB in the end (delta: 56.1 MB). Free memory was 132.3 MB in the beginning and 166.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:21:51,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.72 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 96.4 MB in the beginning and 156.3 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.77 ms. Allocated memory is still 199.2 MB. Free memory was 156.3 MB in the beginning and 154.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.53 ms. Allocated memory is still 199.2 MB. Free memory was 154.2 MB in the beginning and 152.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.23 ms. Allocated memory is still 199.2 MB. Free memory was 152.8 MB in the beginning and 133.0 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2615.93 ms. Allocated memory was 199.2 MB in the beginning and 255.3 MB in the end (delta: 56.1 MB). Free memory was 132.3 MB in the beginning and 166.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 357 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1294 CheckedPairsTotal, 49 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...