/usr/bin/java -Xmx16000000000 -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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:10:16,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:10:16,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:10:17,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:10:17,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:10:17,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:10:17,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:10:17,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:10:17,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:10:17,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:10:17,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:10:17,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:10:17,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:10:17,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:10:17,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:10:17,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:10:17,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:10:17,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:10:17,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:10:17,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:10:17,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:10:17,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:10:17,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:10:17,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:10:17,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:10:17,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:10:17,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:10:17,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:10:17,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:10:17,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:10:17,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:10:17,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:10:17,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:10:17,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:10:17,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:10:17,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:10:17,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:10:17,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:10:17,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:10:17,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:10:17,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:10:17,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:10:17,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:10:17,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:10:17,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:10:17,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:10:17,131 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:10:17,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:10:17,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:10:17,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:10:17,133 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:10:17,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:10:17,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:10:17,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:10:17,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:10:17,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:10:17,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:10:17,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:10:17,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:10:17,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:10:17,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:10:17,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:10:17,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:10:17,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:10:17,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:10:17,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:10:17,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:10:17,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:10:17,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:10:17,433 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:10:17,434 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:10:17,434 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-15 22:10:17,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a923154/cb73552ddbf7456a994b7208258f2e4d/FLAG663270d4c [2020-10-15 22:10:18,048 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:10:18,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-15 22:10:18,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a923154/cb73552ddbf7456a994b7208258f2e4d/FLAG663270d4c [2020-10-15 22:10:18,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1a923154/cb73552ddbf7456a994b7208258f2e4d [2020-10-15 22:10:18,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:10:18,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:10:18,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:10:18,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:10:18,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:10:18,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:10:18" (1/1) ... [2020-10-15 22:10:18,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7343a928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:18, skipping insertion in model container [2020-10-15 22:10:18,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:10:18" (1/1) ... [2020-10-15 22:10:18,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:10:18,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:10:18,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:10:18,942 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:10:18,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:10:19,067 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:10:19,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19 WrapperNode [2020-10-15 22:10:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:10:19,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:10:19,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:10:19,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:10:19,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:10:19,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:10:19,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:10:19,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:10:19,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (1/1) ... [2020-10-15 22:10:19,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:10:19,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:10:19,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:10:19,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:10:19,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (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 [2020-10-15 22:10:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:10:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:10:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:10:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:10:19,212 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:10:19,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:10:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:10:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:10:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:10:19,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:10:19,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:10:19,215 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:10:19,540 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:10:19,540 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:10:19,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:10:19 BoogieIcfgContainer [2020-10-15 22:10:19,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:10:19,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:10:19,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:10:19,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:10:19,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:10:18" (1/3) ... [2020-10-15 22:10:19,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2a6603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:10:19, skipping insertion in model container [2020-10-15 22:10:19,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:10:19" (2/3) ... [2020-10-15 22:10:19,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2a6603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:10:19, skipping insertion in model container [2020-10-15 22:10:19,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:10:19" (3/3) ... [2020-10-15 22:10:19,552 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-15 22:10:19,564 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:10:19,565 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:10:19,572 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:10:19,574 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:10:19,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,601 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,602 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,607 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,608 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,608 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,614 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,614 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,615 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,615 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:10:19,631 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 22:10:19,652 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:10:19,652 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:10:19,652 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:10:19,653 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:10:19,653 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:10:19,653 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:10:19,653 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:10:19,653 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:10:19,666 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:10:19,668 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-15 22:10:19,671 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-15 22:10:19,673 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-15 22:10:19,715 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-15 22:10:19,715 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:10:19,720 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-15 22:10:19,722 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-15 22:10:21,094 INFO L132 LiptonReduction]: Checked pairs total: 1289 [2020-10-15 22:10:21,094 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-15 22:10:21,101 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-15 22:10:21,116 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-15 22:10:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-15 22:10:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 22:10:21,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:10:21,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 22:10:21,126 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:10:21,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:10:21,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-10-15 22:10:21,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:10:21,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525050914] [2020-10-15 22:10:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:10:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:10:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:10:21,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525050914] [2020-10-15 22:10:21,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:10:21,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:10:21,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483534586] [2020-10-15 22:10:21,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:10:21,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:10:21,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:10:21,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:10:21,385 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-15 22:10:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:10:21,416 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-10-15 22:10:21,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:10:21,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 22:10:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:10:21,429 INFO L225 Difference]: With dead ends: 70 [2020-10-15 22:10:21,430 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 22:10:21,431 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 [2020-10-15 22:10:21,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 22:10:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 22:10:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 22:10:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-10-15 22:10:21,476 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-10-15 22:10:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:10:21,477 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-10-15 22:10:21,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:10:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-10-15 22:10:21,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:10:21,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:10:21,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:10:21,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:10:21,479 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:10:21,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:10:21,479 INFO L82 PathProgramCache]: Analyzing trace with hash 417538412, now seen corresponding path program 1 times [2020-10-15 22:10:21,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:10:21,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533968731] [2020-10-15 22:10:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:10:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:10:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:10:21,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533968731] [2020-10-15 22:10:21,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:10:21,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:10:21,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011814070] [2020-10-15 22:10:21,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:10:21,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:10:21,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:10:21,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:10:21,542 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-10-15 22:10:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:10:21,579 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-15 22:10:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:10:21,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 22:10:21,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:10:21,581 INFO L225 Difference]: With dead ends: 60 [2020-10-15 22:10:21,581 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 22:10:21,582 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 [2020-10-15 22:10:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 22:10:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 22:10:21,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 22:10:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-15 22:10:21,588 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-10-15 22:10:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:10:21,589 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-15 22:10:21,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:10:21,589 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-15 22:10:21,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:10:21,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:10:21,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:10:21,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:10:21,590 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:10:21,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:10:21,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-10-15 22:10:21,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:10:21,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745154612] [2020-10-15 22:10:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:10:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:10:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:10:21,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745154612] [2020-10-15 22:10:21,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:10:21,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:10:21,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734296668] [2020-10-15 22:10:21,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:10:21,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:10:21,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:10:21,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:10:21,665 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-10-15 22:10:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:10:21,693 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-10-15 22:10:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:10:21,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:10:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:10:21,694 INFO L225 Difference]: With dead ends: 39 [2020-10-15 22:10:21,694 INFO L226 Difference]: Without dead ends: 29 [2020-10-15 22:10:21,695 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 [2020-10-15 22:10:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-15 22:10:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-15 22:10:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-15 22:10:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. [2020-10-15 22:10:21,699 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 [2020-10-15 22:10:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:10:21,699 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. [2020-10-15 22:10:21,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:10:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-10-15 22:10:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:10:21,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:10:21,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:10:21,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:10:21,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:10:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:10:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash 419248155, now seen corresponding path program 1 times [2020-10-15 22:10:21,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:10:21,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407456403] [2020-10-15 22:10:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:10:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:10:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:10:21,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407456403] [2020-10-15 22:10:21,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:10:21,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:10:21,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85825713] [2020-10-15 22:10:21,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:10:21,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:10:21,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:10:21,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:10:21,776 INFO L87 Difference]: Start difference. First operand 29 states and 44 transitions. Second operand 5 states. [2020-10-15 22:10:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:10:21,814 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2020-10-15 22:10:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:10:21,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:10:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:10:21,816 INFO L225 Difference]: With dead ends: 27 [2020-10-15 22:10:21,816 INFO L226 Difference]: Without dead ends: 22 [2020-10-15 22:10:21,816 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 [2020-10-15 22:10:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-15 22:10:21,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-15 22:10:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-15 22:10:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-15 22:10:21,820 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 10 [2020-10-15 22:10:21,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:10:21,820 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-15 22:10:21,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:10:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-15 22:10:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:10:21,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:10:21,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:10:21,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:10:21,822 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:10:21,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:10:21,823 INFO L82 PathProgramCache]: Analyzing trace with hash -830614075, now seen corresponding path program 1 times [2020-10-15 22:10:21,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:10:21,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781817034] [2020-10-15 22:10:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:10:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:10:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:10:21,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781817034] [2020-10-15 22:10:21,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:10:21,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:10:21,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346947669] [2020-10-15 22:10:21,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:10:21,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:10:21,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:10:21,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:10:21,856 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-15 22:10:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:10:21,864 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-15 22:10:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:10:21,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-15 22:10:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:10:21,865 INFO L225 Difference]: With dead ends: 21 [2020-10-15 22:10:21,865 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:10:21,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:10:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:10:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:10:21,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:10:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:10:21,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-15 22:10:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:10:21,867 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:10:21,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:10:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:10:21,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:10:21,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:10:21,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:10:21 BasicIcfg [2020-10-15 22:10:21,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:10:21,875 INFO L168 Benchmark]: Toolchain (without parser) took 3517.36 ms. Allocated memory was 250.1 MB in the beginning and 356.5 MB in the end (delta: 106.4 MB). Free memory was 205.4 MB in the beginning and 163.8 MB in the end (delta: 41.6 MB). Peak memory consumption was 148.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,875 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:10:21,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.30 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.4 MB in the beginning and 266.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 311.4 MB. Free memory was 266.8 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,878 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 311.4 MB. Free memory was 264.3 MB in the beginning and 261.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,879 INFO L168 Benchmark]: RCFGBuilder took 399.99 ms. Allocated memory is still 311.4 MB. Free memory was 261.8 MB in the beginning and 242.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,880 INFO L168 Benchmark]: TraceAbstraction took 2327.49 ms. Allocated memory was 311.4 MB in the beginning and 356.5 MB in the end (delta: 45.1 MB). Free memory was 242.4 MB in the beginning and 163.8 MB in the end (delta: 78.7 MB). Peak memory consumption was 123.8 MB. Max. memory is 14.2 GB. [2020-10-15 22:10:21,884 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 710.30 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.4 MB in the beginning and 266.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 311.4 MB. Free memory was 266.8 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.22 ms. Allocated memory is still 311.4 MB. Free memory was 264.3 MB in the beginning and 261.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 399.99 ms. Allocated memory is still 311.4 MB. Free memory was 261.8 MB in the beginning and 242.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2327.49 ms. Allocated memory was 311.4 MB in the beginning and 356.5 MB in the end (delta: 45.1 MB). Free memory was 242.4 MB in the beginning and 163.8 MB in the end (delta: 78.7 MB). Peak memory consumption was 123.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 502 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1289 MoverChecksTotal - 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, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 59 SDtfs, 43 SDslu, 54 SDs, 0 SdLazy, 44 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...