/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:44:12,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:44:12,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:44:12,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:44:12,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:44:12,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:44:12,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:44:12,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:44:12,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:44:12,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:44:12,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:44:12,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:44:12,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:44:12,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:44:12,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:44:12,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:44:12,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:44:12,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:44:12,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:44:12,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:44:12,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:44:12,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:44:12,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:44:12,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:44:12,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:44:12,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:44:12,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:44:12,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:44:12,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:44:12,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:44:12,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:44:12,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:44:12,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:44:12,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:44:12,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:44:12,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:44:12,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:44:12,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:44:12,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:44:12,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:44:12,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:44:12,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:44:12,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:44:12,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:44:12,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:44:12,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:44:12,242 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:44:12,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:44:12,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:44:12,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:44:12,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:44:12,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:44:12,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:44:12,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:44:12,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:44:12,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:44:12,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:44:12,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:44:12,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:44:12,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:44:12,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:44:12,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:44:12,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:44:12,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:44:12,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:44:12,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:44:12,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:44:12,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:44:12,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:44:12,246 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:44:12,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:44:12,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:44:12,247 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:44:12,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:44:12,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:44:12,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:44:12,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:44:12,568 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:44:12,569 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-10-16 13:44:12,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1018a9c33/4532a1893ccb42228da6e95afb088cb1/FLAGe556cb0e1 [2020-10-16 13:44:13,128 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:44:13,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-10-16 13:44:13,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1018a9c33/4532a1893ccb42228da6e95afb088cb1/FLAGe556cb0e1 [2020-10-16 13:44:13,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1018a9c33/4532a1893ccb42228da6e95afb088cb1 [2020-10-16 13:44:13,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:44:13,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:44:13,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:44:13,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:44:13,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:44:13,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:44:13" (1/1) ... [2020-10-16 13:44:13,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4b4aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:13, skipping insertion in model container [2020-10-16 13:44:13,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:44:13" (1/1) ... [2020-10-16 13:44:13,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:44:13,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:44:14,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:44:14,016 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:44:14,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:44:14,147 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:44:14,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14 WrapperNode [2020-10-16 13:44:14,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:44:14,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:44:14,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:44:14,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:44:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:44:14,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:44:14,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:44:14,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:44:14,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... [2020-10-16 13:44:14,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:44:14,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:44:14,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:44:14,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:44:14,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:44:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:44:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:44:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:44:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:44:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:44:14,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:44:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:44:14,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:44:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:44:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:44:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:44:14,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:44:14,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:44:14,312 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:44:14,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:44:14,715 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:44:14,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:44:14 BoogieIcfgContainer [2020-10-16 13:44:14,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:44:14,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:44:14,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:44:14,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:44:14,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:44:13" (1/3) ... [2020-10-16 13:44:14,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ccd7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:44:14, skipping insertion in model container [2020-10-16 13:44:14,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:44:14" (2/3) ... [2020-10-16 13:44:14,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ccd7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:44:14, skipping insertion in model container [2020-10-16 13:44:14,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:44:14" (3/3) ... [2020-10-16 13:44:14,726 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-10-16 13:44:14,735 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:44:14,735 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:44:14,741 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:44:14,742 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:44:14,770 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,771 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,771 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,771 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,772 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,773 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,773 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,774 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,776 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,795 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,795 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:44:14,798 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:44:14,813 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:44:14,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:44:14,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:44:14,835 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:44:14,835 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:44:14,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:44:14,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:44:14,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:44:14,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:44:14,850 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:44:14,851 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:44:14,854 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:44:14,856 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:44:14,902 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:44:14,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:44:14,907 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 51 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. [2020-10-16 13:44:14,910 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:44:16,357 INFO L132 LiptonReduction]: Checked pairs total: 2695 [2020-10-16 13:44:16,357 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-16 13:44:16,365 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-16 13:44:16,391 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:44:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:44:16,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:44:16,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:16,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:16,403 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:16,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:16,409 INFO L82 PathProgramCache]: Analyzing trace with hash -595431234, now seen corresponding path program 1 times [2020-10-16 13:44:16,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:16,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937352821] [2020-10-16 13:44:16,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:16,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937352821] [2020-10-16 13:44:16,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:16,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:44:16,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1810487877] [2020-10-16 13:44:16,646 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:16,650 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:16,662 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:44:16,662 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:16,666 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:44:16,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:44:16,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:16,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:44:16,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:44:16,679 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:44:16,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:16,724 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-16 13:44:16,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:44:16,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:44:16,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:16,741 INFO L225 Difference]: With dead ends: 282 [2020-10-16 13:44:16,742 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 13:44:16,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:44:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 13:44:16,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-16 13:44:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 13:44:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-16 13:44:16,813 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-16 13:44:16,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:16,815 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-16 13:44:16,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:44:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-16 13:44:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:44:16,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:16,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:16,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:44:16,817 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1278499900, now seen corresponding path program 1 times [2020-10-16 13:44:16,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:16,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127891338] [2020-10-16 13:44:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:16,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127891338] [2020-10-16 13:44:16,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:16,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:44:16,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [76083201] [2020-10-16 13:44:16,885 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:16,886 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:16,889 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-16 13:44:16,889 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:16,910 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:44:16,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:44:16,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:16,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:44:16,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:44:16,912 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-16 13:44:16,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:16,941 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-16 13:44:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:44:16,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 13:44:16,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:16,944 INFO L225 Difference]: With dead ends: 242 [2020-10-16 13:44:16,944 INFO L226 Difference]: Without dead ends: 146 [2020-10-16 13:44:16,945 INFO L677 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 [2020-10-16 13:44:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-16 13:44:16,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-16 13:44:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:44:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-16 13:44:16,960 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-16 13:44:16,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:16,961 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-16 13:44:16,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:44:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-16 13:44:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:44:16,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:16,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:16,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:44:16,963 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:16,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:16,964 INFO L82 PathProgramCache]: Analyzing trace with hash -453706064, now seen corresponding path program 1 times [2020-10-16 13:44:16,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:16,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324314] [2020-10-16 13:44:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:17,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324314] [2020-10-16 13:44:17,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:17,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:44:17,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1164523956] [2020-10-16 13:44:17,076 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:17,078 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:17,080 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-16 13:44:17,081 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:17,103 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:44:17,139 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:44:17,166 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:44:17,180 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1943#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:44:17,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:44:17,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:17,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:44:17,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:44:17,182 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 5 states. [2020-10-16 13:44:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:17,237 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-10-16 13:44:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:44:17,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-16 13:44:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:17,239 INFO L225 Difference]: With dead ends: 137 [2020-10-16 13:44:17,239 INFO L226 Difference]: Without dead ends: 97 [2020-10-16 13:44:17,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:44:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-16 13:44:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-16 13:44:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-16 13:44:17,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-16 13:44:17,248 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 11 [2020-10-16 13:44:17,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:17,248 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-16 13:44:17,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:44:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-16 13:44:17,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:44:17,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:17,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:17,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:44:17,251 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:17,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1770525280, now seen corresponding path program 1 times [2020-10-16 13:44:17,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:17,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871648663] [2020-10-16 13:44:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:17,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871648663] [2020-10-16 13:44:17,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:17,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:44:17,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2110407232] [2020-10-16 13:44:17,336 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:17,337 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:17,340 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-16 13:44:17,340 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:17,382 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2285#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:44:17,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:44:17,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:17,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:44:17,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:44:17,383 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 7 states. [2020-10-16 13:44:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:17,434 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-10-16 13:44:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:44:17,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-16 13:44:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:17,435 INFO L225 Difference]: With dead ends: 92 [2020-10-16 13:44:17,436 INFO L226 Difference]: Without dead ends: 84 [2020-10-16 13:44:17,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:44:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-16 13:44:17,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-16 13:44:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-16 13:44:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-10-16 13:44:17,443 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-10-16 13:44:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:17,443 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-10-16 13:44:17,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:44:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-10-16 13:44:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:44:17,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:17,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:17,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:44:17,461 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:17,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:17,461 INFO L82 PathProgramCache]: Analyzing trace with hash -793372783, now seen corresponding path program 1 times [2020-10-16 13:44:17,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:17,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004122250] [2020-10-16 13:44:17,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:17,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004122250] [2020-10-16 13:44:17,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:17,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:44:17,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [934785768] [2020-10-16 13:44:17,513 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:17,515 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:17,518 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-10-16 13:44:17,518 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:17,554 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:44:17,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:44:17,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:17,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:44:17,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:44:17,555 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-10-16 13:44:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:17,569 INFO L93 Difference]: Finished difference Result 115 states and 234 transitions. [2020-10-16 13:44:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:44:17,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:44:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:17,571 INFO L225 Difference]: With dead ends: 115 [2020-10-16 13:44:17,571 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 13:44:17,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:44:17,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 13:44:17,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 13:44:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 13:44:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-16 13:44:17,575 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-16 13:44:17,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:17,575 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-16 13:44:17,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:44:17,576 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-16 13:44:17,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:44:17,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:44:17,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:44:17,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:44:17,577 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:44:17,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:44:17,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1598285289, now seen corresponding path program 2 times [2020-10-16 13:44:17,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:44:17,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681431376] [2020-10-16 13:44:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:44:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:44:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:44:17,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681431376] [2020-10-16 13:44:17,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:44:17,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:44:17,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1810624700] [2020-10-16 13:44:17,615 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:44:17,617 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:44:17,624 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-10-16 13:44:17,624 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:44:17,718 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:44:17,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:44:17,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:44:17,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:44:17,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:44:17,719 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-16 13:44:17,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:44:17,729 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2020-10-16 13:44:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:44:17,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 13:44:17,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:44:17,730 INFO L225 Difference]: With dead ends: 53 [2020-10-16 13:44:17,730 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:44:17,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:44:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:44:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:44:17,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:44:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:44:17,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 13:44:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:44:17,732 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:44:17,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:44:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:44:17,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:44:17,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:44:17,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:44:17 BasicIcfg [2020-10-16 13:44:17,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:44:17,739 INFO L168 Benchmark]: Toolchain (without parser) took 4260.09 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 99.7 MB in the beginning and 164.2 MB in the end (delta: -64.5 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,740 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 159.0 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 156.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,743 INFO L168 Benchmark]: Boogie Preprocessor took 26.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,743 INFO L168 Benchmark]: RCFGBuilder took 491.86 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 132.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,744 INFO L168 Benchmark]: TraceAbstraction took 3017.51 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 132.2 MB in the beginning and 164.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:44:17,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.52 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 159.0 MB in the end (delta: -59.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 202.4 MB. Free memory was 159.0 MB in the beginning and 156.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.89 ms. Allocated memory is still 202.4 MB. Free memory was 156.7 MB in the beginning and 155.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.86 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 132.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3017.51 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 132.2 MB in the beginning and 164.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 649 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 37 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 79 PlacesBefore, 31 PlacesAfterwards, 71 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 2695 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 118 SDtfs, 116 SDslu, 163 SDs, 0 SdLazy, 80 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...