/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:11:14,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:11:14,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:11:14,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:11:14,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:11:14,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:11:14,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:11:14,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:11:14,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:11:14,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:11:14,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:11:14,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:11:14,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:11:14,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:11:14,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:11:14,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:11:14,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:11:14,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:11:14,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:11:14,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:11:14,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:11:14,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:11:14,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:11:14,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:11:14,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:11:14,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:11:14,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:11:14,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:11:14,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:11:14,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:11:14,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:11:14,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:11:14,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:11:14,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:11:14,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:11:14,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:11:14,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:11:14,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:11:14,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:11:14,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:11:14,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:11:14,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:11:14,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:11:14,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:11:14,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:11:14,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:11:14,172 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:11:14,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:11:14,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:11:14,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:11:14,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:11:14,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:11:14,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:11:14,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:11:14,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:11:14,175 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:11:14,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:11:14,175 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:11:14,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:11:14,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:11:14,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:11:14,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:11:14,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:11:14,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:11:14,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:11:14,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:11:14,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:11:14,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:11:14,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:11:14,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:11:14,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:11:14,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:11:14,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:11:14,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:11:14,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:11:14,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:11:14,488 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:11:14,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2020-04-18 07:11:14,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4299e28d3/a32795b81cc34de99f00fc43d2297a58/FLAG35a4a32fe [2020-04-18 07:11:15,087 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:11:15,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.oepc.i [2020-04-18 07:11:15,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4299e28d3/a32795b81cc34de99f00fc43d2297a58/FLAG35a4a32fe [2020-04-18 07:11:15,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4299e28d3/a32795b81cc34de99f00fc43d2297a58 [2020-04-18 07:11:15,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:11:15,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:11:15,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:11:15,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:11:15,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:11:15,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:15" (1/1) ... [2020-04-18 07:11:15,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f33b2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:15, skipping insertion in model container [2020-04-18 07:11:15,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:15" (1/1) ... [2020-04-18 07:11:15,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:11:15,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:11:15,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:11:15,976 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:11:16,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:11:16,122 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:11:16,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16 WrapperNode [2020-04-18 07:11:16,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:11:16,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:11:16,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:11:16,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:11:16,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:11:16,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:11:16,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:11:16,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:11:16,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... [2020-04-18 07:11:16,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:11:16,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:11:16,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:11:16,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:11:16,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:11:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:11:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 07:11:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:11:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:11:16,278 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 07:11:16,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 07:11:16,280 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 07:11:16,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 07:11:16,281 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 07:11:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 07:11:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 07:11:16,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:11:16,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:11:16,285 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:11:16,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:11:16,675 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:11:16,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:16 BoogieIcfgContainer [2020-04-18 07:11:16,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:11:16,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:11:16,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:11:16,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:11:16,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:11:15" (1/3) ... [2020-04-18 07:11:16,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa893eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:16, skipping insertion in model container [2020-04-18 07:11:16,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:16" (2/3) ... [2020-04-18 07:11:16,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa893eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:16, skipping insertion in model container [2020-04-18 07:11:16,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:16" (3/3) ... [2020-04-18 07:11:16,688 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_power.oepc.i [2020-04-18 07:11:16,696 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:11:16,696 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:11:16,702 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:11:16,703 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:11:16,728 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,728 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,728 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,729 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,729 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,730 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,730 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,731 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,731 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,731 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,732 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,732 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,732 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,733 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,733 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,733 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,734 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,738 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,738 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,738 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,739 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,744 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,745 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,745 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,745 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,747 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,748 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,748 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,748 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:11:16,767 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:11:16,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:11:16,788 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:11:16,788 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:11:16,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:11:16,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:11:16,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:11:16,789 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:11:16,789 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:11:16,802 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 07:11:17,299 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 07:11:17,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 07:11:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:11:17,330 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:17,331 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:17,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:17,339 INFO L82 PathProgramCache]: Analyzing trace with hash 147192619, now seen corresponding path program 1 times [2020-04-18 07:11:17,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:17,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648018907] [2020-04-18 07:11:17,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:17,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648018907] [2020-04-18 07:11:17,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:17,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:11:17,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692661114] [2020-04-18 07:11:17,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:11:17,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:17,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:11:17,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:11:17,792 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 07:11:18,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:18,218 INFO L93 Difference]: Finished difference Result 8780 states and 29872 transitions. [2020-04-18 07:11:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:11:18,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 07:11:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:18,286 INFO L225 Difference]: With dead ends: 8780 [2020-04-18 07:11:18,286 INFO L226 Difference]: Without dead ends: 3996 [2020-04-18 07:11:18,290 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:11:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3996 states. [2020-04-18 07:11:18,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3996 to 3996. [2020-04-18 07:11:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2020-04-18 07:11:18,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 13367 transitions. [2020-04-18 07:11:18,553 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 13367 transitions. Word has length 37 [2020-04-18 07:11:18,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:18,555 INFO L479 AbstractCegarLoop]: Abstraction has 3996 states and 13367 transitions. [2020-04-18 07:11:18,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:11:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 13367 transitions. [2020-04-18 07:11:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:11:18,568 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:18,568 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:18,569 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:18,569 INFO L82 PathProgramCache]: Analyzing trace with hash 996075595, now seen corresponding path program 1 times [2020-04-18 07:11:18,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:18,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189650951] [2020-04-18 07:11:18,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:18,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189650951] [2020-04-18 07:11:18,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:18,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:11:18,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048824391] [2020-04-18 07:11:18,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:11:18,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:18,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:11:18,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:11:18,800 INFO L87 Difference]: Start difference. First operand 3996 states and 13367 transitions. Second operand 7 states. [2020-04-18 07:11:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:19,064 INFO L93 Difference]: Finished difference Result 3528 states and 11300 transitions. [2020-04-18 07:11:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:11:19,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-04-18 07:11:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:19,082 INFO L225 Difference]: With dead ends: 3528 [2020-04-18 07:11:19,083 INFO L226 Difference]: Without dead ends: 2412 [2020-04-18 07:11:19,093 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:11:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2020-04-18 07:11:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2020-04-18 07:11:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2412 states. [2020-04-18 07:11:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 7559 transitions. [2020-04-18 07:11:19,170 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 7559 transitions. Word has length 41 [2020-04-18 07:11:19,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:19,171 INFO L479 AbstractCegarLoop]: Abstraction has 2412 states and 7559 transitions. [2020-04-18 07:11:19,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:11:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 7559 transitions. [2020-04-18 07:11:19,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 07:11:19,180 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:19,180 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:19,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:19,181 INFO L82 PathProgramCache]: Analyzing trace with hash 799576525, now seen corresponding path program 1 times [2020-04-18 07:11:19,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:19,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367670119] [2020-04-18 07:11:19,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:19,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367670119] [2020-04-18 07:11:19,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:19,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:11:19,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145944265] [2020-04-18 07:11:19,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:11:19,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:19,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:11:19,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:11:19,401 INFO L87 Difference]: Start difference. First operand 2412 states and 7559 transitions. Second operand 8 states. [2020-04-18 07:11:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:19,605 INFO L93 Difference]: Finished difference Result 1764 states and 5336 transitions. [2020-04-18 07:11:19,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:11:19,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 07:11:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:19,614 INFO L225 Difference]: With dead ends: 1764 [2020-04-18 07:11:19,614 INFO L226 Difference]: Without dead ends: 1224 [2020-04-18 07:11:19,615 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:11:19,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-04-18 07:11:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2020-04-18 07:11:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2020-04-18 07:11:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 3599 transitions. [2020-04-18 07:11:19,653 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 3599 transitions. Word has length 45 [2020-04-18 07:11:19,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:19,654 INFO L479 AbstractCegarLoop]: Abstraction has 1224 states and 3599 transitions. [2020-04-18 07:11:19,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:11:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 3599 transitions. [2020-04-18 07:11:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 07:11:19,658 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:19,658 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:19,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1836077105, now seen corresponding path program 1 times [2020-04-18 07:11:19,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:19,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118570949] [2020-04-18 07:11:19,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:19,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118570949] [2020-04-18 07:11:19,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:19,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:11:19,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243175102] [2020-04-18 07:11:19,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:11:19,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:19,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:11:19,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:11:19,825 INFO L87 Difference]: Start difference. First operand 1224 states and 3599 transitions. Second operand 7 states. [2020-04-18 07:11:20,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:20,021 INFO L93 Difference]: Finished difference Result 1747 states and 5142 transitions. [2020-04-18 07:11:20,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:11:20,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-04-18 07:11:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:20,031 INFO L225 Difference]: With dead ends: 1747 [2020-04-18 07:11:20,031 INFO L226 Difference]: Without dead ends: 1216 [2020-04-18 07:11:20,034 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:11:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2020-04-18 07:11:20,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1064. [2020-04-18 07:11:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-04-18 07:11:20,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 3071 transitions. [2020-04-18 07:11:20,078 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 3071 transitions. Word has length 49 [2020-04-18 07:11:20,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:20,080 INFO L479 AbstractCegarLoop]: Abstraction has 1064 states and 3071 transitions. [2020-04-18 07:11:20,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:11:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 3071 transitions. [2020-04-18 07:11:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 07:11:20,083 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:20,083 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:20,083 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:20,084 INFO L82 PathProgramCache]: Analyzing trace with hash -509181779, now seen corresponding path program 2 times [2020-04-18 07:11:20,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:20,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808482207] [2020-04-18 07:11:20,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:20,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808482207] [2020-04-18 07:11:20,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:20,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:11:20,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430546996] [2020-04-18 07:11:20,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:11:20,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:20,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:11:20,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:11:20,255 INFO L87 Difference]: Start difference. First operand 1064 states and 3071 transitions. Second operand 8 states. [2020-04-18 07:11:20,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:20,378 INFO L93 Difference]: Finished difference Result 1587 states and 4614 transitions. [2020-04-18 07:11:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:11:20,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-04-18 07:11:20,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:20,384 INFO L225 Difference]: With dead ends: 1587 [2020-04-18 07:11:20,385 INFO L226 Difference]: Without dead ends: 854 [2020-04-18 07:11:20,385 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:11:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-04-18 07:11:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2020-04-18 07:11:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-04-18 07:11:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 2454 transitions. [2020-04-18 07:11:20,408 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 2454 transitions. Word has length 49 [2020-04-18 07:11:20,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:20,408 INFO L479 AbstractCegarLoop]: Abstraction has 854 states and 2454 transitions. [2020-04-18 07:11:20,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:11:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 2454 transitions. [2020-04-18 07:11:20,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 07:11:20,411 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:20,411 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:20,411 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:20,412 INFO L82 PathProgramCache]: Analyzing trace with hash -242681937, now seen corresponding path program 3 times [2020-04-18 07:11:20,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:20,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266592123] [2020-04-18 07:11:20,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:20,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266592123] [2020-04-18 07:11:20,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:20,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:11:20,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341864168] [2020-04-18 07:11:20,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:11:20,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:20,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:11:20,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:11:20,550 INFO L87 Difference]: Start difference. First operand 854 states and 2454 transitions. Second operand 7 states. [2020-04-18 07:11:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:20,679 INFO L93 Difference]: Finished difference Result 1257 states and 3631 transitions. [2020-04-18 07:11:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:11:20,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-04-18 07:11:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:20,684 INFO L225 Difference]: With dead ends: 1257 [2020-04-18 07:11:20,684 INFO L226 Difference]: Without dead ends: 710 [2020-04-18 07:11:20,685 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:11:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2020-04-18 07:11:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 678. [2020-04-18 07:11:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-04-18 07:11:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1918 transitions. [2020-04-18 07:11:20,702 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1918 transitions. Word has length 49 [2020-04-18 07:11:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:20,703 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 1918 transitions. [2020-04-18 07:11:20,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:11:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1918 transitions. [2020-04-18 07:11:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 07:11:20,705 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:11:20,705 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:11:20,705 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:11:20,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:11:20,706 INFO L82 PathProgramCache]: Analyzing trace with hash 221095599, now seen corresponding path program 4 times [2020-04-18 07:11:20,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:11:20,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013276024] [2020-04-18 07:11:20,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:11:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:11:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:11:20,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013276024] [2020-04-18 07:11:20,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:11:20,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:11:20,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664640009] [2020-04-18 07:11:20,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:11:20,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:11:20,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:11:20,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:11:20,812 INFO L87 Difference]: Start difference. First operand 678 states and 1918 transitions. Second operand 7 states. [2020-04-18 07:11:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:11:20,911 INFO L93 Difference]: Finished difference Result 624 states and 1756 transitions. [2020-04-18 07:11:20,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 07:11:20,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2020-04-18 07:11:20,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:11:20,912 INFO L225 Difference]: With dead ends: 624 [2020-04-18 07:11:20,912 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:11:20,913 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:11:20,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:11:20,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:11:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:11:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:11:20,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-04-18 07:11:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:11:20,914 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:11:20,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:11:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:11:20,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:11:20,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:11:20 BasicIcfg [2020-04-18 07:11:20,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:11:20,923 INFO L168 Benchmark]: Toolchain (without parser) took 5510.68 ms. Allocated memory was 138.4 MB in the beginning and 321.9 MB in the end (delta: 183.5 MB). Free memory was 101.7 MB in the beginning and 73.1 MB in the end (delta: 28.6 MB). Peak memory consumption was 212.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,924 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.06 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 157.3 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,927 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,927 INFO L168 Benchmark]: RCFGBuilder took 468.14 ms. Allocated memory is still 202.4 MB. Free memory was 153.9 MB in the beginning and 131.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,928 INFO L168 Benchmark]: TraceAbstraction took 4240.40 ms. Allocated memory was 202.4 MB in the beginning and 321.9 MB in the end (delta: 119.5 MB). Free memory was 130.6 MB in the beginning and 73.1 MB in the end (delta: 57.5 MB). Peak memory consumption was 177.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:11:20,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.06 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 157.3 MB in the end (delta: -57.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 468.14 ms. Allocated memory is still 202.4 MB. Free memory was 153.9 MB in the beginning and 131.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4240.40 ms. Allocated memory was 202.4 MB in the beginning and 321.9 MB in the end (delta: 119.5 MB). Free memory was 130.6 MB in the beginning and 73.1 MB in the end (delta: 57.5 MB). Peak memory consumption was 177.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 621 SDtfs, 820 SDslu, 2274 SDs, 0 SdLazy, 275 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8473occurred 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: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 184 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 52320 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...