/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:07:39,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:07:39,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:07:39,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:07:39,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:07:39,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:07:39,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:07:39,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:07:39,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:07:39,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:07:39,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:07:39,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:07:39,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:07:39,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:07:39,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:07:39,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:07:39,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:07:39,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:07:39,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:07:39,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:07:39,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:07:39,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:07:39,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:07:39,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:07:39,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:07:39,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:07:39,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:07:39,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:07:39,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:07:39,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:07:39,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:07:39,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:07:39,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:07:39,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:07:39,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:07:39,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:07:39,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:07:39,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:07:39,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:07:39,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:07:39,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:07:39,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:07:39,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:07:39,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:07:39,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:07:39,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:07:39,350 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:07:39,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:07:39,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:07:39,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:07:39,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:07:39,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:07:39,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:07:39,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:07:39,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:07:39,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:07:39,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:07:39,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:07:39,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:07:39,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:39,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:07:39,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:07:39,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:07:39,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:07:39,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:07:39,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:07:39,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:07:39,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:07:39,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:07:39,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:07:39,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:07:39,849 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:07:39,850 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:07:39,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2020-12-22 11:07:39,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88a1b8a8/02adb8eba2f9427abb4c850f06b22b7f/FLAGe10126189 [2020-12-22 11:07:40,667 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:07:40,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2020-12-22 11:07:40,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88a1b8a8/02adb8eba2f9427abb4c850f06b22b7f/FLAGe10126189 [2020-12-22 11:07:40,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88a1b8a8/02adb8eba2f9427abb4c850f06b22b7f [2020-12-22 11:07:40,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:07:40,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:07:40,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:40,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:07:40,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:07:40,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:40" (1/1) ... [2020-12-22 11:07:40,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3515a78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:40, skipping insertion in model container [2020-12-22 11:07:40,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:40" (1/1) ... [2020-12-22 11:07:40,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:07:41,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:07:41,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i[950,963] [2020-12-22 11:07:41,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:41,488 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:07:41,503 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i[950,963] [2020-12-22 11:07:41,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:41,698 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:07:41,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41 WrapperNode [2020-12-22 11:07:41,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:41,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:41,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:07:41,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:07:41,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:41,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:07:41,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:07:41,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:07:41,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... [2020-12-22 11:07:41,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:07:41,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:07:41,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:07:41,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:07:41,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:07:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:07:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:07:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:07:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:07:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:07:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:07:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:07:41,922 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:07:42,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:07:42,418 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:07:42,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:42 BoogieIcfgContainer [2020-12-22 11:07:42,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:07:42,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:07:42,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:07:42,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:07:42,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:07:40" (1/3) ... [2020-12-22 11:07:42,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55def6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:42, skipping insertion in model container [2020-12-22 11:07:42,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:41" (2/3) ... [2020-12-22 11:07:42,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55def6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:42, skipping insertion in model container [2020-12-22 11:07:42,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:42" (3/3) ... [2020-12-22 11:07:42,429 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-12-22 11:07:42,436 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:07:42,437 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:07:42,443 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:07:42,444 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:07:42,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,478 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,478 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,479 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,479 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,481 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,496 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,496 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:42,499 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:07:42,522 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 11:07:42,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:07:42,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:07:42,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:07:42,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:07:42,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:07:42,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:07:42,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:07:42,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:07:42,562 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:07:42,564 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 60 transitions, 130 flow [2020-12-22 11:07:42,567 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 60 transitions, 130 flow [2020-12-22 11:07:42,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2020-12-22 11:07:42,611 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2020-12-22 11:07:42,614 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:07:42,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-22 11:07:42,628 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-22 11:07:45,255 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 11:07:45,558 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 11:07:45,682 INFO L131 LiptonReduction]: Checked pairs total: 1378 [2020-12-22 11:07:45,682 INFO L133 LiptonReduction]: Total number of compositions: 55 [2020-12-22 11:07:45,689 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 16 transitions, 42 flow [2020-12-22 11:07:45,699 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-12-22 11:07:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-12-22 11:07:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 11:07:45,706 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:45,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 11:07:45,707 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:45,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:45,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1925010784, now seen corresponding path program 1 times [2020-12-22 11:07:45,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:45,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863758222] [2020-12-22 11:07:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863758222] [2020-12-22 11:07:46,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:07:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556063929] [2020-12-22 11:07:46,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:07:46,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:07:46,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:07:46,068 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-12-22 11:07:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,119 INFO L93 Difference]: Finished difference Result 104 states and 207 transitions. [2020-12-22 11:07:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:07:46,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 11:07:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,135 INFO L225 Difference]: With dead ends: 104 [2020-12-22 11:07:46,137 INFO L226 Difference]: Without dead ends: 63 [2020-12-22 11:07:46,138 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 [2020-12-22 11:07:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-22 11:07:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2020-12-22 11:07:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 11:07:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 109 transitions. [2020-12-22 11:07:46,197 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 109 transitions. Word has length 6 [2020-12-22 11:07:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,198 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 109 transitions. [2020-12-22 11:07:46,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:07:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 109 transitions. [2020-12-22 11:07:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 11:07:46,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:46,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:46,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:07:46,200 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:46,206 INFO L82 PathProgramCache]: Analyzing trace with hash 454629136, now seen corresponding path program 1 times [2020-12-22 11:07:46,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:46,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143260334] [2020-12-22 11:07:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143260334] [2020-12-22 11:07:46,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:07:46,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282776562] [2020-12-22 11:07:46,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:07:46,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:07:46,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:07:46,360 INFO L87 Difference]: Start difference. First operand 57 states and 109 transitions. Second operand 3 states. [2020-12-22 11:07:46,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,371 INFO L93 Difference]: Finished difference Result 54 states and 101 transitions. [2020-12-22 11:07:46,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:07:46,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 11:07:46,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,373 INFO L225 Difference]: With dead ends: 54 [2020-12-22 11:07:46,373 INFO L226 Difference]: Without dead ends: 54 [2020-12-22 11:07:46,374 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 [2020-12-22 11:07:46,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-12-22 11:07:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-12-22 11:07:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 11:07:46,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 101 transitions. [2020-12-22 11:07:46,391 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 101 transitions. Word has length 7 [2020-12-22 11:07:46,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,391 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 101 transitions. [2020-12-22 11:07:46,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:07:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 101 transitions. [2020-12-22 11:07:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 11:07:46,394 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:46,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:46,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:07:46,395 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:46,401 INFO L82 PathProgramCache]: Analyzing trace with hash 454206947, now seen corresponding path program 1 times [2020-12-22 11:07:46,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:46,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120412651] [2020-12-22 11:07:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120412651] [2020-12-22 11:07:46,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:46,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401427064] [2020-12-22 11:07:46,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:46,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:46,470 INFO L87 Difference]: Start difference. First operand 54 states and 101 transitions. Second operand 4 states. [2020-12-22 11:07:46,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,505 INFO L93 Difference]: Finished difference Result 63 states and 109 transitions. [2020-12-22 11:07:46,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:46,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-22 11:07:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,506 INFO L225 Difference]: With dead ends: 63 [2020-12-22 11:07:46,506 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 11:07:46,507 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 [2020-12-22 11:07:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 11:07:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-12-22 11:07:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 11:07:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 93 transitions. [2020-12-22 11:07:46,515 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 93 transitions. Word has length 7 [2020-12-22 11:07:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,515 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 93 transitions. [2020-12-22 11:07:46,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 93 transitions. [2020-12-22 11:07:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:07:46,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:46,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:46,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:07:46,517 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:46,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1195512545, now seen corresponding path program 1 times [2020-12-22 11:07:46,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:46,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902107791] [2020-12-22 11:07:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902107791] [2020-12-22 11:07:46,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:46,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875576607] [2020-12-22 11:07:46,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:46,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:46,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:46,572 INFO L87 Difference]: Start difference. First operand 51 states and 93 transitions. Second operand 4 states. [2020-12-22 11:07:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,604 INFO L93 Difference]: Finished difference Result 52 states and 85 transitions. [2020-12-22 11:07:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:46,605 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-22 11:07:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,605 INFO L225 Difference]: With dead ends: 52 [2020-12-22 11:07:46,605 INFO L226 Difference]: Without dead ends: 28 [2020-12-22 11:07:46,606 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 [2020-12-22 11:07:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-22 11:07:46,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-22 11:07:46,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-22 11:07:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2020-12-22 11:07:46,610 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 8 [2020-12-22 11:07:46,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,610 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2020-12-22 11:07:46,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2020-12-22 11:07:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:46,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:46,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:46,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:07:46,612 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:46,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1199016759, now seen corresponding path program 1 times [2020-12-22 11:07:46,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:46,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437416145] [2020-12-22 11:07:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437416145] [2020-12-22 11:07:46,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:46,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839039742] [2020-12-22 11:07:46,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:46,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:46,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:46,677 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 4 states. [2020-12-22 11:07:46,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,699 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-12-22 11:07:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:46,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:46,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,701 INFO L225 Difference]: With dead ends: 27 [2020-12-22 11:07:46,701 INFO L226 Difference]: Without dead ends: 21 [2020-12-22 11:07:46,702 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 [2020-12-22 11:07:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-22 11:07:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-22 11:07:46,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-22 11:07:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2020-12-22 11:07:46,704 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 9 [2020-12-22 11:07:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,705 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-12-22 11:07:46,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2020-12-22 11:07:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:46,706 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:46,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:46,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:07:46,706 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:46,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1520437605, now seen corresponding path program 1 times [2020-12-22 11:07:46,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:46,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112769892] [2020-12-22 11:07:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:46,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112769892] [2020-12-22 11:07:46,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:46,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:46,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453699417] [2020-12-22 11:07:46,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:46,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:46,777 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand 5 states. [2020-12-22 11:07:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:46,792 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2020-12-22 11:07:46,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:46,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:46,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:46,792 INFO L225 Difference]: With dead ends: 18 [2020-12-22 11:07:46,793 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:07:46,793 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 [2020-12-22 11:07:46,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:07:46,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:07:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:07:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:07:46,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-22 11:07:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:46,794 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:07:46,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:07:46,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:07:46,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:07:46,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:07:46 BasicIcfg [2020-12-22 11:07:46,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:07:46,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:07:46,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:07:46,800 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:07:46,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:42" (3/4) ... [2020-12-22 11:07:46,804 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:07:46,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:07:46,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:07:46,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-22 11:07:46,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:07:46,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:46,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:46,859 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe010_tso.oepc.i-witness.graphml [2020-12-22 11:07:46,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:07:46,861 INFO L168 Benchmark]: Toolchain (without parser) took 5886.33 ms. Allocated memory was 170.9 MB in the beginning and 223.3 MB in the end (delta: 52.4 MB). Free memory was 145.3 MB in the beginning and 177.8 MB in the end (delta: -32.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,861 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 170.9 MB. Free memory is still 146.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:46,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.71 ms. Allocated memory is still 170.9 MB. Free memory was 145.1 MB in the beginning and 149.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.62 ms. Allocated memory is still 170.9 MB. Free memory was 149.0 MB in the beginning and 147.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,863 INFO L168 Benchmark]: Boogie Preprocessor took 28.52 ms. Allocated memory is still 170.9 MB. Free memory was 147.4 MB in the beginning and 146.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,864 INFO L168 Benchmark]: RCFGBuilder took 642.95 ms. Allocated memory is still 170.9 MB. Free memory was 145.9 MB in the beginning and 125.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,865 INFO L168 Benchmark]: TraceAbstraction took 4376.85 ms. Allocated memory was 170.9 MB in the beginning and 223.3 MB in the end (delta: 52.4 MB). Free memory was 125.4 MB in the beginning and 180.5 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:46,865 INFO L168 Benchmark]: Witness Printer took 59.62 ms. Allocated memory is still 223.3 MB. Free memory was 180.5 MB in the beginning and 177.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:46,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 170.9 MB. Free memory is still 146.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 722.71 ms. Allocated memory is still 170.9 MB. Free memory was 145.1 MB in the beginning and 149.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.62 ms. Allocated memory is still 170.9 MB. Free memory was 149.0 MB in the beginning and 147.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.52 ms. Allocated memory is still 170.9 MB. Free memory was 147.4 MB in the beginning and 146.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 642.95 ms. Allocated memory is still 170.9 MB. Free memory was 145.9 MB in the beginning and 125.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4376.85 ms. Allocated memory was 170.9 MB in the beginning and 223.3 MB in the end (delta: 52.4 MB). Free memory was 125.4 MB in the beginning and 180.5 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 59.62 ms. Allocated memory is still 223.3 MB. Free memory was 180.5 MB in the beginning and 177.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 473 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 47 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 65 PlacesBefore, 22 PlacesAfterwards, 60 TransitionsBefore, 16 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 55 TotalNumberOfCompositions, 1378 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 72 SDtfs, 50 SDslu, 65 SDs, 0 SdLazy, 33 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...