/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:49:09,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:49:09,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:49:09,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:49:09,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:49:09,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:49:09,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:49:09,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:49:09,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:49:09,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:49:09,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:49:09,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:49:09,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:49:09,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:49:09,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:49:09,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:49:09,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:49:09,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:49:09,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:49:09,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:49:09,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:49:09,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:49:09,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:49:09,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:49:09,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:49:09,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:49:09,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:49:09,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:49:09,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:49:09,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:49:09,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:49:09,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:49:09,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:49:09,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:49:09,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:49:09,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:49:09,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:49:09,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:49:09,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:49:09,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:49:09,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:49:09,099 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-VariableLbe.epf [2020-04-18 02:49:09,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:49:09,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:49:09,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:49:09,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:49:09,120 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:49:09,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:49:09,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:49:09,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:49:09,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:49:09,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:49:09,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:49:09,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:49:09,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:49:09,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:49:09,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:49:09,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:49:09,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:49:09,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:49:09,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:49:09,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:49:09,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:49:09,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:49:09,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:49:09,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:49:09,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:49:09,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:49:09,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:49:09,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:49:09,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:49:09,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:49:09,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:49:09,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:49:09,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:49:09,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:49:09,443 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:49:09,444 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-04-18 02:49:09,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100cf7ac7/3b976d717c5741e396bca563299ff3f7/FLAG29ccc89c6 [2020-04-18 02:49:10,014 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:49:10,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-04-18 02:49:10,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100cf7ac7/3b976d717c5741e396bca563299ff3f7/FLAG29ccc89c6 [2020-04-18 02:49:10,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/100cf7ac7/3b976d717c5741e396bca563299ff3f7 [2020-04-18 02:49:10,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:49:10,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:49:10,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:49:10,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:49:10,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:49:10,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:49:10" (1/1) ... [2020-04-18 02:49:10,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bba74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:10, skipping insertion in model container [2020-04-18 02:49:10,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:49:10" (1/1) ... [2020-04-18 02:49:10,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:49:10,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:49:10,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:49:10,999 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:49:11,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:49:11,155 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:49:11,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11 WrapperNode [2020-04-18 02:49:11,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:49:11,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:49:11,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:49:11,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:49:11,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:49:11,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:49:11,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:49:11,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:49:11,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (1/1) ... [2020-04-18 02:49:11,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:49:11,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:49:11,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:49:11,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:49:11,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (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 02:49:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:49:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:49:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:49:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:49:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:49:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:49:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:49:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:49:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:49:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:49:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:49:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:49:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:49:11,310 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 02:49:11,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:49:11,675 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:49:11,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:49:11 BoogieIcfgContainer [2020-04-18 02:49:11,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:49:11,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:49:11,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:49:11,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:49:11,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:49:10" (1/3) ... [2020-04-18 02:49:11,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6493ee4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:49:11, skipping insertion in model container [2020-04-18 02:49:11,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:49:11" (2/3) ... [2020-04-18 02:49:11,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6493ee4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:49:11, skipping insertion in model container [2020-04-18 02:49:11,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:49:11" (3/3) ... [2020-04-18 02:49:11,688 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-04-18 02:49:11,698 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:49:11,698 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:49:11,705 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:49:11,707 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:49:11,731 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,732 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,732 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,732 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,733 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,733 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,734 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,734 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,734 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,735 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,735 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,735 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,736 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,736 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,736 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,737 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,737 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,737 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,742 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,743 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,748 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,749 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,752 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,752 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,752 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,753 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:49:11,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:49:11,795 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:49:11,795 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:49:11,795 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:49:11,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:49:11,796 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:49:11,796 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:49:11,796 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:49:11,796 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:49:11,812 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-18 02:49:11,814 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 02:49:11,856 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 02:49:11,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:49:11,864 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:49:11,868 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 02:49:11,893 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 02:49:11,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:49:11,894 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:49:11,896 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:49:11,897 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:49:13,139 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 02:49:13,224 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2365 [2020-04-18 02:49:13,224 INFO L214 etLargeBlockEncoding]: Total number of compositions: 53 [2020-04-18 02:49:13,228 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 02:49:13,276 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 02:49:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 02:49:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:49:13,286 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:13,287 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:13,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:13,294 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times [2020-04-18 02:49:13,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:13,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275471448] [2020-04-18 02:49:13,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:13,498 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 02:49:13,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275471448] [2020-04-18 02:49:13,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:13,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:49:13,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649658184] [2020-04-18 02:49:13,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:49:13,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:13,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:49:13,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:49:13,517 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 02:49:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:13,559 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 02:49:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:49:13,561 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 02:49:13,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:13,579 INFO L225 Difference]: With dead ends: 362 [2020-04-18 02:49:13,579 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 02:49:13,581 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:49:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 02:49:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 02:49:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 02:49:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 02:49:13,658 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 02:49:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:13,659 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 02:49:13,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:49:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 02:49:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:49:13,661 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:13,661 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:13,662 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:13,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times [2020-04-18 02:49:13,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:13,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123949694] [2020-04-18 02:49:13,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:13,794 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 02:49:13,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123949694] [2020-04-18 02:49:13,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:13,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:49:13,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359445075] [2020-04-18 02:49:13,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:49:13,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:13,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:49:13,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:49:13,800 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-18 02:49:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:13,836 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-18 02:49:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:49:13,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 02:49:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:13,849 INFO L225 Difference]: With dead ends: 217 [2020-04-18 02:49:13,850 INFO L226 Difference]: Without dead ends: 217 [2020-04-18 02:49:13,851 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:49:13,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-18 02:49:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-18 02:49:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-18 02:49:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-18 02:49:13,891 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-18 02:49:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:13,892 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-18 02:49:13,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:49:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-18 02:49:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:49:13,894 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:13,894 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:13,894 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:13,895 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times [2020-04-18 02:49:13,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:13,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929675634] [2020-04-18 02:49:13,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:14,017 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 02:49:14,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929675634] [2020-04-18 02:49:14,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:14,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:49:14,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662369580] [2020-04-18 02:49:14,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:49:14,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:14,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:49:14,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:49:14,020 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-04-18 02:49:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:14,045 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-18 02:49:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:49:14,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:49:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:14,048 INFO L225 Difference]: With dead ends: 136 [2020-04-18 02:49:14,048 INFO L226 Difference]: Without dead ends: 136 [2020-04-18 02:49:14,048 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:49:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-18 02:49:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-18 02:49:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-18 02:49:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-18 02:49:14,057 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-18 02:49:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:14,057 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-18 02:49:14,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:49:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-18 02:49:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:49:14,059 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:14,059 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:14,060 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:14,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times [2020-04-18 02:49:14,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:14,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456378611] [2020-04-18 02:49:14,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:14,175 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 02:49:14,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456378611] [2020-04-18 02:49:14,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:14,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:49:14,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501881372] [2020-04-18 02:49:14,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:49:14,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:14,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:49:14,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:49:14,178 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-04-18 02:49:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:14,206 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-18 02:49:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:49:14,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-18 02:49:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:14,208 INFO L225 Difference]: With dead ends: 109 [2020-04-18 02:49:14,208 INFO L226 Difference]: Without dead ends: 109 [2020-04-18 02:49:14,208 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:49:14,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-18 02:49:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-18 02:49:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-18 02:49:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-18 02:49:14,214 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-18 02:49:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:14,215 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-18 02:49:14,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:49:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-18 02:49:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:49:14,216 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:14,217 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:14,217 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times [2020-04-18 02:49:14,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:14,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294362902] [2020-04-18 02:49:14,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:14,276 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 02:49:14,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294362902] [2020-04-18 02:49:14,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:14,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:49:14,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365454050] [2020-04-18 02:49:14,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:49:14,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:14,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:49:14,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:49:14,278 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-04-18 02:49:14,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:14,302 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-04-18 02:49:14,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:49:14,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-04-18 02:49:14,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:14,304 INFO L225 Difference]: With dead ends: 135 [2020-04-18 02:49:14,304 INFO L226 Difference]: Without dead ends: 55 [2020-04-18 02:49:14,304 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:49:14,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-04-18 02:49:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-04-18 02:49:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-04-18 02:49:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-04-18 02:49:14,308 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-04-18 02:49:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:14,308 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-04-18 02:49:14,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:49:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-04-18 02:49:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:49:14,309 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:14,309 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:14,310 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:14,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:14,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2050108487, now seen corresponding path program 2 times [2020-04-18 02:49:14,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:14,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854684041] [2020-04-18 02:49:14,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:14,388 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 02:49:14,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854684041] [2020-04-18 02:49:14,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:14,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:49:14,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072553604] [2020-04-18 02:49:14,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:49:14,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:14,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:49:14,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:49:14,393 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-04-18 02:49:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:14,441 INFO L93 Difference]: Finished difference Result 84 states and 152 transitions. [2020-04-18 02:49:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:49:14,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-18 02:49:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:14,442 INFO L225 Difference]: With dead ends: 84 [2020-04-18 02:49:14,442 INFO L226 Difference]: Without dead ends: 46 [2020-04-18 02:49:14,443 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:49:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-04-18 02:49:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-04-18 02:49:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-04-18 02:49:14,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 81 transitions. [2020-04-18 02:49:14,446 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 81 transitions. Word has length 18 [2020-04-18 02:49:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:14,446 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 81 transitions. [2020-04-18 02:49:14,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:49:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 81 transitions. [2020-04-18 02:49:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:49:14,450 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:49:14,450 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:49:14,453 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:49:14,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:49:14,453 INFO L82 PathProgramCache]: Analyzing trace with hash 784811111, now seen corresponding path program 3 times [2020-04-18 02:49:14,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:49:14,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515885763] [2020-04-18 02:49:14,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:49:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:49:14,546 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 02:49:14,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515885763] [2020-04-18 02:49:14,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:49:14,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:49:14,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886903318] [2020-04-18 02:49:14,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:49:14,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:49:14,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:49:14,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:49:14,549 INFO L87 Difference]: Start difference. First operand 46 states and 81 transitions. Second operand 4 states. [2020-04-18 02:49:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:49:14,567 INFO L93 Difference]: Finished difference Result 45 states and 80 transitions. [2020-04-18 02:49:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:49:14,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-04-18 02:49:14,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:49:14,568 INFO L225 Difference]: With dead ends: 45 [2020-04-18 02:49:14,568 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:49:14,570 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:49:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:49:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:49:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:49:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:49:14,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 02:49:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:49:14,571 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:49:14,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:49:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:49:14,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:49:14,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:49:14 BasicIcfg [2020-04-18 02:49:14,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:49:14,577 INFO L168 Benchmark]: Toolchain (without parser) took 4215.32 ms. Allocated memory was 138.9 MB in the beginning and 245.4 MB in the end (delta: 106.4 MB). Free memory was 102.4 MB in the beginning and 126.0 MB in the end (delta: -23.6 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,584 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.78 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 158.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.57 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 155.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,588 INFO L168 Benchmark]: Boogie Preprocessor took 29.49 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,589 INFO L168 Benchmark]: RCFGBuilder took 432.76 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 132.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,593 INFO L168 Benchmark]: TraceAbstraction took 2894.52 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 132.3 MB in the beginning and 126.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:49:14,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.78 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 158.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.57 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 155.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.49 ms. Allocated memory is still 203.4 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.76 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 132.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2894.52 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 132.3 MB in the beginning and 126.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 77 ProgramPointsBefore, 32 ProgramPointsAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 620 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2365 CheckedPairsTotal, 53 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 127 SDtfs, 71 SDslu, 158 SDs, 0 SdLazy, 66 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2998 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...