/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:53:16,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:53:16,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:53:16,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:53:16,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:53:16,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:53:16,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:53:16,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:53:16,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:53:16,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:53:16,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:53:16,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:53:16,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:53:16,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:53:16,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:53:16,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:53:16,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:53:16,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:53:16,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:53:16,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:53:16,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:53:16,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:53:16,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:53:16,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:53:16,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:53:16,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:53:16,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:53:16,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:53:16,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:53:16,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:53:16,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:53:16,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:53:16,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:53:16,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:53:16,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:53:16,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:53:16,260 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:53:16,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:53:16,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:53:16,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:53:16,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:53:16,296 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:53:16,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:53:16,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:53:16,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:53:16,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:53:16,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:53:16,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:53:16,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:53:16,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:53:16,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:53:16,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:53:16,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:53:16,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:53:16,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:53:16,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:53:16,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:53:16,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:53:16,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:53:16,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:53:16,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:53:16,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:53:16,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:53:16,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:53:16,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:53:16,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:53:16,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:53:16,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:53:16,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:53:16,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:53:16,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:53:16,612 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:53:16,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-10-05 22:53:16,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f06cbd39/e31203f9f57041ec8e58f148e103fcbe/FLAG6df22bbb2 [2020-10-05 22:53:17,225 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:53:17,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2020-10-05 22:53:17,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f06cbd39/e31203f9f57041ec8e58f148e103fcbe/FLAG6df22bbb2 [2020-10-05 22:53:17,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f06cbd39/e31203f9f57041ec8e58f148e103fcbe [2020-10-05 22:53:17,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:53:17,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:53:17,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:17,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:53:17,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:53:17,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:17" (1/1) ... [2020-10-05 22:53:17,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ae30ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:17, skipping insertion in model container [2020-10-05 22:53:17,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:53:17" (1/1) ... [2020-10-05 22:53:17,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:53:17,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:53:18,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:18,056 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:53:18,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:53:18,176 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:53:18,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18 WrapperNode [2020-10-05 22:53:18,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:53:18,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:18,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:53:18,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:53:18,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:53:18,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:53:18,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:53:18,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:53:18,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (1/1) ... [2020-10-05 22:53:18,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:53:18,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:53:18,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:53:18,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:53:18,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (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 [2020-10-05 22:53:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:53:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:53:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:53:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:53:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:53:18,330 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:53:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:53:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:53:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:53:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:53:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:53:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:53:18,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:53:18,333 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:53:18,652 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:53:18,652 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:53:18,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:18 BoogieIcfgContainer [2020-10-05 22:53:18,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:53:18,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:53:18,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:53:18,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:53:18,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:53:17" (1/3) ... [2020-10-05 22:53:18,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378ccd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:18, skipping insertion in model container [2020-10-05 22:53:18,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:53:18" (2/3) ... [2020-10-05 22:53:18,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3378ccd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:53:18, skipping insertion in model container [2020-10-05 22:53:18,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:53:18" (3/3) ... [2020-10-05 22:53:18,663 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.opt.i [2020-10-05 22:53:18,674 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:53:18,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:53:18,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:53:18,682 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:53:18,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,716 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,721 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,722 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,722 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,723 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,745 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,745 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,748 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:53:18,765 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:53:18,786 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:53:18,786 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:53:18,786 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:53:18,787 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:53:18,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:53:18,787 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:53:18,787 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:53:18,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:53:18,804 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-05 22:53:18,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-05 22:53:18,862 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-05 22:53:18,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:18,870 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:53:18,876 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-05 22:53:18,923 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-05 22:53:18,924 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:53:18,924 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:53:18,928 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:53:18,930 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:53:20,127 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-05 22:53:20,236 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-10-05 22:53:20,236 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-05 22:53:20,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-05 22:53:20,268 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-05 22:53:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-05 22:53:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:53:20,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:20,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:20,279 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:20,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:20,285 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-10-05 22:53:20,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:20,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196222825] [2020-10-05 22:53:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:20,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196222825] [2020-10-05 22:53:20,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:20,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:20,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915106170] [2020-10-05 22:53:20,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:53:20,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:20,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:53:20,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:53:20,491 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-05 22:53:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:20,526 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-05 22:53:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:53:20,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-05 22:53:20,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:20,544 INFO L225 Difference]: With dead ends: 362 [2020-10-05 22:53:20,545 INFO L226 Difference]: Without dead ends: 298 [2020-10-05 22:53:20,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:53:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-05 22:53:20,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-05 22:53:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-05 22:53:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-05 22:53:20,618 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-05 22:53:20,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:20,619 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-05 22:53:20,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:53:20,619 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-05 22:53:20,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:53:20,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:20,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:20,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:53:20,622 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:20,622 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-10-05 22:53:20,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:20,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490025507] [2020-10-05 22:53:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:20,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490025507] [2020-10-05 22:53:20,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:20,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:53:20,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819016395] [2020-10-05 22:53:20,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:53:20,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:20,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:53:20,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:53:20,713 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-05 22:53:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:20,730 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-05 22:53:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:53:20,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 22:53:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:20,733 INFO L225 Difference]: With dead ends: 217 [2020-10-05 22:53:20,733 INFO L226 Difference]: Without dead ends: 217 [2020-10-05 22:53:20,734 INFO L675 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 [2020-10-05 22:53:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-05 22:53:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-05 22:53:20,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-05 22:53:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-05 22:53:20,756 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-05 22:53:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:20,757 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-05 22:53:20,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:53:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-05 22:53:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:53:20,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:20,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:20,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:53:20,763 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:20,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-10-05 22:53:20,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:20,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624357241] [2020-10-05 22:53:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:20,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624357241] [2020-10-05 22:53:20,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:20,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:53:20,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098191449] [2020-10-05 22:53:20,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:53:20,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:20,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:53:20,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:20,883 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-05 22:53:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:20,905 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-05 22:53:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:53:20,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:53:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:20,907 INFO L225 Difference]: With dead ends: 136 [2020-10-05 22:53:20,907 INFO L226 Difference]: Without dead ends: 136 [2020-10-05 22:53:20,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:53:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-05 22:53:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-05 22:53:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-05 22:53:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-05 22:53:20,917 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-05 22:53:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:20,917 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-05 22:53:20,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:53:20,918 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-05 22:53:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:53:20,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:20,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:20,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:53:20,920 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:20,920 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-10-05 22:53:20,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:20,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550694950] [2020-10-05 22:53:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:20,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550694950] [2020-10-05 22:53:20,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:20,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:53:20,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368248871] [2020-10-05 22:53:20,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:20,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:20,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:20,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:20,990 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-05 22:53:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:21,018 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-05 22:53:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:21,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-05 22:53:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:21,020 INFO L225 Difference]: With dead ends: 109 [2020-10-05 22:53:21,021 INFO L226 Difference]: Without dead ends: 109 [2020-10-05 22:53:21,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-05 22:53:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-05 22:53:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-05 22:53:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-05 22:53:21,028 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-05 22:53:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:21,028 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-05 22:53:21,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-05 22:53:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:53:21,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:21,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:21,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:53:21,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:21,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:21,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-10-05 22:53:21,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:21,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981517007] [2020-10-05 22:53:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:21,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981517007] [2020-10-05 22:53:21,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:21,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:53:21,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527375463] [2020-10-05 22:53:21,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:21,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:21,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:21,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:21,132 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-05 22:53:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:21,166 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-05 22:53:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:21,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:53:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:21,168 INFO L225 Difference]: With dead ends: 135 [2020-10-05 22:53:21,168 INFO L226 Difference]: Without dead ends: 85 [2020-10-05 22:53:21,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:53:21,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-05 22:53:21,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-05 22:53:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-05 22:53:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-05 22:53:21,174 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-05 22:53:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:21,174 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-05 22:53:21,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-05 22:53:21,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:53:21,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:21,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:21,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:53:21,176 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:21,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:21,176 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-10-05 22:53:21,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:21,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871943236] [2020-10-05 22:53:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:21,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871943236] [2020-10-05 22:53:21,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:21,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:53:21,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132570178] [2020-10-05 22:53:21,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:21,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:21,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:21,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:21,230 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-05 22:53:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:21,259 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-10-05 22:53:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:21,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:53:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:21,260 INFO L225 Difference]: With dead ends: 99 [2020-10-05 22:53:21,261 INFO L226 Difference]: Without dead ends: 37 [2020-10-05 22:53:21,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:53:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-05 22:53:21,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-05 22:53:21,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-05 22:53:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-05 22:53:21,264 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-05 22:53:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:21,264 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-05 22:53:21,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-05 22:53:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 22:53:21,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:53:21,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:53:21,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:53:21,266 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:53:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:53:21,266 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-10-05 22:53:21,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:53:21,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89448930] [2020-10-05 22:53:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:53:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:53:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:53:21,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89448930] [2020-10-05 22:53:21,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:53:21,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:53:21,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839049530] [2020-10-05 22:53:21,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:53:21,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:53:21,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:53:21,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:53:21,319 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-05 22:53:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:53:21,342 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-05 22:53:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:53:21,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 22:53:21,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:53:21,343 INFO L225 Difference]: With dead ends: 36 [2020-10-05 22:53:21,343 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:53:21,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:53:21,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:53:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:53:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:53:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:53:21,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-05 22:53:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:53:21,345 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:53:21,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:53:21,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:53:21,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:53:21,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:53:21,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:53:21 BasicIcfg [2020-10-05 22:53:21,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:53:21,351 INFO L168 Benchmark]: Toolchain (without parser) took 3794.66 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 101.6 MB in the beginning and 95.7 MB in the end (delta: 5.9 MB). Peak memory consumption was 112.8 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,352 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.50 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 159.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 156.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,355 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,356 INFO L168 Benchmark]: RCFGBuilder took 402.76 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 132.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,357 INFO L168 Benchmark]: TraceAbstraction took 2693.29 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.2 MB in the beginning and 95.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:53:21,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.50 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 159.1 MB in the end (delta: -57.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 156.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.76 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 132.9 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2693.29 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.2 MB in the beginning and 95.7 MB in the end (delta: 36.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 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 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...