/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:33:55,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:33:56,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:33:56,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:33:56,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:33:56,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:33:56,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:33:56,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:33:56,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:33:56,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:33:56,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:33:56,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:33:56,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:33:56,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:33:56,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:33:56,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:33:56,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:33:56,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:33:56,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:33:56,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:33:56,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:33:56,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:33:56,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:33:56,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:33:56,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:33:56,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:33:56,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:33:56,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:33:56,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:33:56,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:33:56,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:33:56,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:33:56,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:33:56,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:33:56,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:33:56,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:33:56,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:33:56,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:33:56,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:33:56,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:33:56,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:33:56,091 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 [2020-04-17 22:33:56,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:33:56,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:33:56,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:33:56,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:33:56,133 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:33:56,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:33:56,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:33:56,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:33:56,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:33:56,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:33:56,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:33:56,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:33:56,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:33:56,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:33:56,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:33:56,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:33:56,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:33:56,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:33:56,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:33:56,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:33:56,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:33:56,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:33:56,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:33:56,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:33:56,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:33:56,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:33:56,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:33:56,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:33:56,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:33:56,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:33:56,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:33:56,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:33:56,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:33:56,472 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:33:56,473 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-04-17 22:33:56,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23e09d77/4fe35ace7bd249ec912c07e41f70c158/FLAGfc7895cbf [2020-04-17 22:33:57,148 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:33:57,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-04-17 22:33:57,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23e09d77/4fe35ace7bd249ec912c07e41f70c158/FLAGfc7895cbf [2020-04-17 22:33:57,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23e09d77/4fe35ace7bd249ec912c07e41f70c158 [2020-04-17 22:33:57,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:33:57,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:33:57,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:33:57,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:33:57,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:33:57,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:33:57" (1/1) ... [2020-04-17 22:33:57,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5643b74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:57, skipping insertion in model container [2020-04-17 22:33:57,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:33:57" (1/1) ... [2020-04-17 22:33:57,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:33:57,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:33:57,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:33:57,984 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:33:58,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:33:58,153 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:33:58,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58 WrapperNode [2020-04-17 22:33:58,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:33:58,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:33:58,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:33:58,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:33:58,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:33:58,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:33:58,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:33:58,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:33:58,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... [2020-04-17 22:33:58,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:33:58,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:33:58,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:33:58,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:33:58,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:33:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:33:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:33:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:33:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:33:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:33:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:33:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:33:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:33:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:33:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:33:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:33:58,316 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:33:58,667 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:33:58,668 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:33:58,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:33:58 BoogieIcfgContainer [2020-04-17 22:33:58,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:33:58,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:33:58,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:33:58,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:33:58,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:33:57" (1/3) ... [2020-04-17 22:33:58,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a06fbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:33:58, skipping insertion in model container [2020-04-17 22:33:58,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:33:58" (2/3) ... [2020-04-17 22:33:58,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a06fbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:33:58, skipping insertion in model container [2020-04-17 22:33:58,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:33:58" (3/3) ... [2020-04-17 22:33:58,681 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-04-17 22:33:58,691 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:33:58,692 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:33:58,699 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:33:58,700 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:33:58,726 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,726 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,727 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,727 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,727 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,727 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,728 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,728 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,728 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,729 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,729 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,729 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,733 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,734 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,734 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,734 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,740 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,741 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,741 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,741 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:33:58,759 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-17 22:33:58,779 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:33:58,780 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:33:58,780 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:33:58,780 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:33:58,780 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:33:58,781 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:33:58,781 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:33:58,781 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:33:58,797 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-04-17 22:33:58,799 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-04-17 22:33:58,856 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-04-17 22:33:58,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:33:58,862 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 32 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. [2020-04-17 22:33:58,864 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-04-17 22:33:58,882 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-04-17 22:33:58,883 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:33:58,883 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 32 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. [2020-04-17 22:33:58,885 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-17 22:33:58,886 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:34:00,337 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1209 [2020-04-17 22:34:00,337 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2020-04-17 22:34:00,341 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-17 22:34:00,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-17 22:34:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-17 22:34:00,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-17 22:34:00,363 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:34:00,364 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-17 22:34:00,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:34:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:34:00,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-04-17 22:34:00,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:34:00,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83091694] [2020-04-17 22:34:00,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:34:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:34:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:34:00,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83091694] [2020-04-17 22:34:00,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:34:00,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:34:00,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610247838] [2020-04-17 22:34:00,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:34:00,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:34:00,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:34:00,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:34:00,609 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-04-17 22:34:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:34:00,640 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-04-17 22:34:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:34:00,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-17 22:34:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:34:00,652 INFO L225 Difference]: With dead ends: 72 [2020-04-17 22:34:00,653 INFO L226 Difference]: Without dead ends: 56 [2020-04-17 22:34:00,654 INFO L678 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 [2020-04-17 22:34:00,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-04-17 22:34:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-04-17 22:34:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-04-17 22:34:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-04-17 22:34:00,695 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-04-17 22:34:00,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:34:00,696 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-04-17 22:34:00,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:34:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-04-17 22:34:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-17 22:34:00,697 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:34:00,697 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:34:00,697 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:34:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:34:00,698 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-04-17 22:34:00,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:34:00,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630242585] [2020-04-17 22:34:00,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:34:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:34:00,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:34:00,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630242585] [2020-04-17 22:34:00,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:34:00,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:34:00,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181777160] [2020-04-17 22:34:00,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:34:00,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:34:00,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:34:00,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:34:00,841 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-04-17 22:34:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:34:00,890 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-04-17 22:34:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:34:00,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-04-17 22:34:00,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:34:00,893 INFO L225 Difference]: With dead ends: 56 [2020-04-17 22:34:00,894 INFO L226 Difference]: Without dead ends: 40 [2020-04-17 22:34:00,895 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:34:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-04-17 22:34:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-04-17 22:34:00,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-04-17 22:34:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-04-17 22:34:00,904 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-04-17 22:34:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:34:00,905 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-04-17 22:34:00,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:34:00,905 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-04-17 22:34:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:34:00,906 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:34:00,906 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:34:00,907 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:34:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:34:00,907 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times [2020-04-17 22:34:00,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:34:00,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307601186] [2020-04-17 22:34:00,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:34:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:34:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:34:01,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307601186] [2020-04-17 22:34:01,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:34:01,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:34:01,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63220044] [2020-04-17 22:34:01,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:34:01,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:34:01,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:34:01,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:34:01,033 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-04-17 22:34:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:34:01,077 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-04-17 22:34:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:34:01,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-04-17 22:34:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:34:01,078 INFO L225 Difference]: With dead ends: 35 [2020-04-17 22:34:01,078 INFO L226 Difference]: Without dead ends: 28 [2020-04-17 22:34:01,079 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:34:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-04-17 22:34:01,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-04-17 22:34:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-04-17 22:34:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-04-17 22:34:01,083 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-04-17 22:34:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:34:01,083 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-04-17 22:34:01,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:34:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-04-17 22:34:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:34:01,084 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:34:01,084 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:34:01,085 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:34:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:34:01,085 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-04-17 22:34:01,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:34:01,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394215466] [2020-04-17 22:34:01,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:34:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:34:01,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:34:01,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394215466] [2020-04-17 22:34:01,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:34:01,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:34:01,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672506477] [2020-04-17 22:34:01,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:34:01,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:34:01,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:34:01,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:34:01,133 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-04-17 22:34:01,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:34:01,149 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-04-17 22:34:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:34:01,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-04-17 22:34:01,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:34:01,150 INFO L225 Difference]: With dead ends: 35 [2020-04-17 22:34:01,150 INFO L226 Difference]: Without dead ends: 16 [2020-04-17 22:34:01,150 INFO L678 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 [2020-04-17 22:34:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-04-17 22:34:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-04-17 22:34:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-04-17 22:34:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-04-17 22:34:01,153 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-04-17 22:34:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:34:01,153 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-04-17 22:34:01,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:34:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-04-17 22:34:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:34:01,154 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:34:01,154 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:34:01,154 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:34:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:34:01,155 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-04-17 22:34:01,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:34:01,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023020588] [2020-04-17 22:34:01,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:34:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:34:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:34:01,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023020588] [2020-04-17 22:34:01,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:34:01,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:34:01,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262041462] [2020-04-17 22:34:01,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:34:01,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:34:01,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:34:01,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:34:01,207 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-04-17 22:34:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:34:01,224 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-04-17 22:34:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:34:01,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:34:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:34:01,225 INFO L225 Difference]: With dead ends: 15 [2020-04-17 22:34:01,225 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:34:01,225 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:34:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:34:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:34:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:34:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:34:01,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-04-17 22:34:01,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:34:01,227 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:34:01,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:34:01,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:34:01,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:34:01,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:34:01 BasicIcfg [2020-04-17 22:34:01,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:34:01,234 INFO L168 Benchmark]: Toolchain (without parser) took 3843.99 ms. Allocated memory was 146.8 MB in the beginning and 243.8 MB in the end (delta: 97.0 MB). Free memory was 103.3 MB in the beginning and 142.2 MB in the end (delta: -38.9 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,235 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.42 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 162.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.74 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,237 INFO L168 Benchmark]: Boogie Preprocessor took 26.50 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,238 INFO L168 Benchmark]: RCFGBuilder took 432.60 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 138.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,239 INFO L168 Benchmark]: TraceAbstraction took 2557.82 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 138.8 MB in the beginning and 142.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-04-17 22:34:01,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 746.42 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 162.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.74 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.50 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.60 ms. Allocated memory is still 204.5 MB. Free memory was 158.5 MB in the beginning and 138.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2557.82 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 138.8 MB in the beginning and 142.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 60 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 364 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1209 CheckedPairsTotal, 47 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, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 939 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...