/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_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:28:42,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:28:42,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:28:42,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:28:42,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:28:42,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:28:42,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:28:42,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:28:42,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:28:42,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:28:42,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:28:42,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:28:42,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:28:42,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:28:42,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:28:42,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:28:42,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:28:42,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:28:42,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:28:42,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:28:42,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:28:42,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:28:42,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:28:42,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:28:42,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 01:28:42,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 01:28:42,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 01:28:42,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 01:28:42,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 01:28:42,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 01:28:42,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:28:42,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:28:42,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:28:42,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:28:42,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:28:42,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:28:42,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:28:42,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:28:42,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:28:42,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:28:42,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:28:42,930 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 [2020-09-17 01:28:42,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:28:42,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:28:42,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:28:42,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:28:42,979 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:28:42,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:28:42,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:28:42,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:28:42,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:28:42,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:28:42,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:28:42,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:28:42,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:28:42,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:28:42,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:28:42,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:28:42,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:28:42,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:28:42,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:28:42,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:28:42,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:28:42,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:28:42,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:28:42,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:28:42,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:28:42,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:28:42,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:28:42,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:28:42,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:28:42,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:28:43,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:28:43,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:28:43,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:28:43,452 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:28:43,453 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:28:43,454 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.oepc.i [2020-09-17 01:28:43,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4485d98/cd812a1b580b4722990847effe2c871a/FLAGc672204f7 [2020-09-17 01:28:44,166 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:28:44,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_tso.oepc.i [2020-09-17 01:28:44,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4485d98/cd812a1b580b4722990847effe2c871a/FLAGc672204f7 [2020-09-17 01:28:44,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec4485d98/cd812a1b580b4722990847effe2c871a [2020-09-17 01:28:44,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:28:44,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:28:44,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:28:44,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:28:44,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:28:44,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:28:44" (1/1) ... [2020-09-17 01:28:44,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d192010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:44, skipping insertion in model container [2020-09-17 01:28:44,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:28:44" (1/1) ... [2020-09-17 01:28:44,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:28:44,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:28:45,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:28:45,068 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:28:45,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:28:45,207 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:28:45,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45 WrapperNode [2020-09-17 01:28:45,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:28:45,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:28:45,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:28:45,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:28:45,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:28:45,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:28:45,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:28:45,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:28:45,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (1/1) ... [2020-09-17 01:28:45,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:28:45,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:28:45,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:28:45,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:28:45,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (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 [2020-09-17 01:28:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:28:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:28:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:28:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:28:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:28:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:28:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:28:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:28:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:28:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:28:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:28:45,385 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:28:45,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:28:45,756 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:28:45,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:28:45 BoogieIcfgContainer [2020-09-17 01:28:45,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:28:45,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:28:45,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:28:45,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:28:45,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:28:44" (1/3) ... [2020-09-17 01:28:45,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a559fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:28:45, skipping insertion in model container [2020-09-17 01:28:45,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:28:45" (2/3) ... [2020-09-17 01:28:45,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a559fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:28:45, skipping insertion in model container [2020-09-17 01:28:45,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:28:45" (3/3) ... [2020-09-17 01:28:45,771 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_tso.oepc.i [2020-09-17 01:28:45,783 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:28:45,783 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:28:45,794 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:28:45,795 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:28:45,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,838 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,838 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:28:45,862 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-17 01:28:45,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:28:45,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:28:45,885 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:28:45,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:28:45,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:28:45,886 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:28:45,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:28:45,886 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:28:45,904 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-09-17 01:28:45,906 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-17 01:28:45,951 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-17 01:28:45,952 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:28:45,957 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. [2020-09-17 01:28:45,959 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-17 01:28:45,978 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-17 01:28:45,979 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:28:45,979 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. [2020-09-17 01:28:45,981 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-17 01:28:45,983 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:28:47,110 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-17 01:28:47,456 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1294 [2020-09-17 01:28:47,456 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-17 01:28:47,461 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-17 01:28:47,476 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-17 01:28:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-17 01:28:47,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 01:28:47,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:28:47,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-17 01:28:47,488 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:28:47,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:28:47,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-09-17 01:28:47,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:28:47,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704509256] [2020-09-17 01:28:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:28:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:28:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:28:47,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704509256] [2020-09-17 01:28:47,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:28:47,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:28:47,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591117203] [2020-09-17 01:28:47,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:28:47,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:28:47,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:28:47,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:28:47,839 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-09-17 01:28:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:28:47,924 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-09-17 01:28:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:28:47,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-09-17 01:28:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:28:47,944 INFO L225 Difference]: With dead ends: 63 [2020-09-17 01:28:47,944 INFO L226 Difference]: Without dead ends: 40 [2020-09-17 01:28:47,946 INFO L675 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 [2020-09-17 01:28:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-17 01:28:47,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-17 01:28:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-17 01:28:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-09-17 01:28:48,000 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-09-17 01:28:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:28:48,001 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-09-17 01:28:48,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:28:48,002 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-09-17 01:28:48,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:28:48,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:28:48,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:28:48,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:28:48,005 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:28:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:28:48,005 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-09-17 01:28:48,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:28:48,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825183811] [2020-09-17 01:28:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:28:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:28:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:28:48,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825183811] [2020-09-17 01:28:48,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:28:48,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:28:48,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126597147] [2020-09-17 01:28:48,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:28:48,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:28:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:28:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:28:48,105 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-09-17 01:28:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:28:48,145 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-09-17 01:28:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:28:48,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:28:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:28:48,147 INFO L225 Difference]: With dead ends: 35 [2020-09-17 01:28:48,147 INFO L226 Difference]: Without dead ends: 28 [2020-09-17 01:28:48,148 INFO L675 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 [2020-09-17 01:28:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-17 01:28:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-17 01:28:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-17 01:28:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-09-17 01:28:48,153 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-09-17 01:28:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:28:48,153 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-09-17 01:28:48,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:28:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-09-17 01:28:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:28:48,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:28:48,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:28:48,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:28:48,155 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:28:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:28:48,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-09-17 01:28:48,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:28:48,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433241536] [2020-09-17 01:28:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:28:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:28:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:28:48,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433241536] [2020-09-17 01:28:48,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:28:48,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:28:48,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053152211] [2020-09-17 01:28:48,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:28:48,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:28:48,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:28:48,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:28:48,235 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-09-17 01:28:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:28:48,251 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-09-17 01:28:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:28:48,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:28:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:28:48,253 INFO L225 Difference]: With dead ends: 35 [2020-09-17 01:28:48,253 INFO L226 Difference]: Without dead ends: 22 [2020-09-17 01:28:48,253 INFO L675 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 [2020-09-17 01:28:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-17 01:28:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-17 01:28:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-17 01:28:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-09-17 01:28:48,257 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-09-17 01:28:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:28:48,257 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-09-17 01:28:48,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:28:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-09-17 01:28:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:28:48,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:28:48,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:28:48,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:28:48,259 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:28:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:28:48,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-09-17 01:28:48,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:28:48,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377051475] [2020-09-17 01:28:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:28:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:28:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:28:48,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377051475] [2020-09-17 01:28:48,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:28:48,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:28:48,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412182971] [2020-09-17 01:28:48,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:28:48,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:28:48,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:28:48,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:28:48,342 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-09-17 01:28:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:28:48,356 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-09-17 01:28:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:28:48,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:28:48,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:28:48,357 INFO L225 Difference]: With dead ends: 21 [2020-09-17 01:28:48,357 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:28:48,358 INFO L675 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 [2020-09-17 01:28:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:28:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:28:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:28:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:28:48,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-17 01:28:48,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:28:48,360 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:28:48,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:28:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:28:48,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:28:48,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:28:48,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:28:48 BasicIcfg [2020-09-17 01:28:48,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:28:48,369 INFO L168 Benchmark]: Toolchain (without parser) took 3949.75 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 102.0 MB in the beginning and 146.4 MB in the end (delta: -44.4 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,370 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.25 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 162.5 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.66 ms. Allocated memory is still 205.5 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,380 INFO L168 Benchmark]: Boogie Preprocessor took 35.35 ms. Allocated memory is still 205.5 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,381 INFO L168 Benchmark]: RCFGBuilder took 454.32 ms. Allocated memory is still 205.5 MB. Free memory was 159.3 MB in the beginning and 139.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,382 INFO L168 Benchmark]: TraceAbstraction took 2603.80 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 139.0 MB in the beginning and 146.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-09-17 01:28:48,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 785.25 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 162.5 MB in the end (delta: -61.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.66 ms. Allocated memory is still 205.5 MB. Free memory was 162.5 MB in the beginning and 160.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.35 ms. Allocated memory is still 205.5 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.32 ms. Allocated memory is still 205.5 MB. Free memory was 159.3 MB in the beginning and 139.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2603.80 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 139.0 MB in the beginning and 146.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, 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, 0.0s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 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...