/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:41:18,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:41:18,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:41:19,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:41:19,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:41:19,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:41:19,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:41:19,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:41:19,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:41:19,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:41:19,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:41:19,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:41:19,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:41:19,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:41:19,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:41:19,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:41:19,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:41:19,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:41:19,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:41:19,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:41:19,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:41:19,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:41:19,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:41:19,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:41:19,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:41:19,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:41:19,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:41:19,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:41:19,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:41:19,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:41:19,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:41:19,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:41:19,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:41:19,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:41:19,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:41:19,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:41:19,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:41:19,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:41:19,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:41:19,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:41:19,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:41:19,084 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 02:41:19,107 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:41:19,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:41:19,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:41:19,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:41:19,111 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:41:19,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:41:19,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:41:19,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:41:19,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:41:19,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:41:19,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:41:19,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:41:19,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:41:19,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:41:19,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:41:19,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:41:19,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:41:19,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:41:19,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:41:19,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:41:19,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:41:19,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:41:19,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:41:19,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:41:19,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:41:19,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:41:19,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:41:19,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:41:19,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:41:19,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:41:19,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:41:19,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:41:19,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:41:19,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:41:19,441 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:41:19,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-18 02:41:19,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec4cabb6/f791d3f07fcf48248e2e8c9e917a644b/FLAG80c21c431 [2020-04-18 02:41:20,093 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:41:20,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-04-18 02:41:20,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec4cabb6/f791d3f07fcf48248e2e8c9e917a644b/FLAG80c21c431 [2020-04-18 02:41:20,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec4cabb6/f791d3f07fcf48248e2e8c9e917a644b [2020-04-18 02:41:20,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:41:20,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:41:20,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:20,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:41:20,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:41:20,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:20" (1/1) ... [2020-04-18 02:41:20,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34792190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:20, skipping insertion in model container [2020-04-18 02:41:20,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:20" (1/1) ... [2020-04-18 02:41:20,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:41:20,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:41:20,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:21,014 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:41:21,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:21,165 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:41:21,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21 WrapperNode [2020-04-18 02:41:21,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:21,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:21,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:41:21,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:41:21,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:21,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:41:21,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:41:21,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:41:21,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (1/1) ... [2020-04-18 02:41:21,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:41:21,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:41:21,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:41:21,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:41:21,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (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 02:41:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:41:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:41:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:41:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:41:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:41:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:41:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:41:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:41:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:41:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:41:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:41:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:41:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:41:21,337 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 02:41:21,762 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:41:21,763 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:41:21,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:21 BoogieIcfgContainer [2020-04-18 02:41:21,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:41:21,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:41:21,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:41:21,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:41:21,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:41:20" (1/3) ... [2020-04-18 02:41:21,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a1aa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:21, skipping insertion in model container [2020-04-18 02:41:21,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:21" (2/3) ... [2020-04-18 02:41:21,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a1aa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:21, skipping insertion in model container [2020-04-18 02:41:21,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:21" (3/3) ... [2020-04-18 02:41:21,775 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-04-18 02:41:21,784 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:41:21,784 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:41:21,791 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:41:21,792 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:41:21,827 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,828 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,828 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,828 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,829 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,830 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,830 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,830 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,830 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,831 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,832 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,833 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,833 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,833 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,834 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,858 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,859 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,859 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,859 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,862 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,863 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,863 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,863 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:21,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:41:21,905 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:41:21,906 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:41:21,906 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:41:21,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:41:21,906 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:41:21,906 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:41:21,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:41:21,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:41:21,923 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-18 02:41:21,925 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 02:41:21,968 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 02:41:21,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:21,974 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 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-18 02:41:21,977 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 02:41:22,014 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-18 02:41:22,015 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:22,015 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 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-18 02:41:22,019 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-04-18 02:41:22,020 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:41:23,602 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-04-18 02:41:23,602 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-04-18 02:41:23,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-04-18 02:41:23,630 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-04-18 02:41:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-04-18 02:41:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:41:23,641 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:23,641 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:23,642 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:23,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-04-18 02:41:23,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:23,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549442926] [2020-04-18 02:41:23,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:23,910 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 02:41:23,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549442926] [2020-04-18 02:41:23,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:23,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:41:23,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506065193] [2020-04-18 02:41:23,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:41:23,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:23,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:41:23,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:41:23,945 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-04-18 02:41:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:23,988 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-04-18 02:41:23,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:41:23,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:41:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,008 INFO L225 Difference]: With dead ends: 214 [2020-04-18 02:41:24,008 INFO L226 Difference]: Without dead ends: 166 [2020-04-18 02:41:24,009 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:41:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-04-18 02:41:24,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-04-18 02:41:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-04-18 02:41:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-04-18 02:41:24,078 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-04-18 02:41:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,080 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-04-18 02:41:24,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:41:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-04-18 02:41:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:41:24,081 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,082 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,082 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,082 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-04-18 02:41:24,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375060531] [2020-04-18 02:41:24,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,209 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 02:41:24,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375060531] [2020-04-18 02:41:24,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:24,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271686767] [2020-04-18 02:41:24,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:24,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:24,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:24,215 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-04-18 02:41:24,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,248 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-04-18 02:41:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:41:24,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 02:41:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,251 INFO L225 Difference]: With dead ends: 202 [2020-04-18 02:41:24,251 INFO L226 Difference]: Without dead ends: 130 [2020-04-18 02:41:24,252 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:24,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-04-18 02:41:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-04-18 02:41:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-04-18 02:41:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-04-18 02:41:24,268 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-04-18 02:41:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,268 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-04-18 02:41:24,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-04-18 02:41:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:41:24,270 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,270 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,270 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,271 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-04-18 02:41:24,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894465889] [2020-04-18 02:41:24,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,359 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 02:41:24,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894465889] [2020-04-18 02:41:24,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:24,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512277192] [2020-04-18 02:41:24,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:24,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:24,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:24,361 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-04-18 02:41:24,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,395 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-04-18 02:41:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:24,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 02:41:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,398 INFO L225 Difference]: With dead ends: 148 [2020-04-18 02:41:24,398 INFO L226 Difference]: Without dead ends: 112 [2020-04-18 02:41:24,398 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:24,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-18 02:41:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-18 02:41:24,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-18 02:41:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-04-18 02:41:24,410 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-04-18 02:41:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,411 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-04-18 02:41:24,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-04-18 02:41:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:41:24,412 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,412 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,412 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,413 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-04-18 02:41:24,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898109051] [2020-04-18 02:41:24,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,502 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 02:41:24,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898109051] [2020-04-18 02:41:24,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:24,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298798227] [2020-04-18 02:41:24,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:24,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:24,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:24,507 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-04-18 02:41:24,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,556 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-04-18 02:41:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:24,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-18 02:41:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,558 INFO L225 Difference]: With dead ends: 109 [2020-04-18 02:41:24,558 INFO L226 Difference]: Without dead ends: 85 [2020-04-18 02:41:24,559 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:41:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-18 02:41:24,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-18 02:41:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-18 02:41:24,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-04-18 02:41:24,566 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-04-18 02:41:24,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,566 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-04-18 02:41:24,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-04-18 02:41:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:41:24,568 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,568 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-04-18 02:41:24,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142150296] [2020-04-18 02:41:24,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,673 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 02:41:24,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142150296] [2020-04-18 02:41:24,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:24,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310692362] [2020-04-18 02:41:24,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:41:24,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:41:24,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:41:24,676 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-04-18 02:41:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,735 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-04-18 02:41:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:41:24,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-04-18 02:41:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,737 INFO L225 Difference]: With dead ends: 80 [2020-04-18 02:41:24,738 INFO L226 Difference]: Without dead ends: 72 [2020-04-18 02:41:24,738 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-04-18 02:41:24,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-04-18 02:41:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-04-18 02:41:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-04-18 02:41:24,744 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-04-18 02:41:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,744 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-04-18 02:41:24,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:41:24,745 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-04-18 02:41:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:41:24,746 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,746 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,746 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,747 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-04-18 02:41:24,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914276997] [2020-04-18 02:41:24,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,810 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 02:41:24,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914276997] [2020-04-18 02:41:24,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:24,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546765188] [2020-04-18 02:41:24,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:24,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:24,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:24,813 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-04-18 02:41:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,836 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-04-18 02:41:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:41:24,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-18 02:41:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,837 INFO L225 Difference]: With dead ends: 97 [2020-04-18 02:41:24,838 INFO L226 Difference]: Without dead ends: 48 [2020-04-18 02:41:24,838 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:41:24,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-04-18 02:41:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-04-18 02:41:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-04-18 02:41:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-04-18 02:41:24,841 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-04-18 02:41:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,842 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-04-18 02:41:24,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-04-18 02:41:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:41:24,843 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:24,843 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:24,843 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-04-18 02:41:24,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:24,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624745274] [2020-04-18 02:41:24,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:24,926 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 02:41:24,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624745274] [2020-04-18 02:41:24,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:24,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:24,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266857367] [2020-04-18 02:41:24,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:24,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:24,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:24,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:24,929 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-04-18 02:41:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:24,940 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-04-18 02:41:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:41:24,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-18 02:41:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:24,941 INFO L225 Difference]: With dead ends: 47 [2020-04-18 02:41:24,941 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:41:24,942 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 02:41:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:41:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:41:24,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:41:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:41:24,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-04-18 02:41:24,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:24,943 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:41:24,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:41:24,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:41:24,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:41:24 BasicIcfg [2020-04-18 02:41:24,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:41:24,951 INFO L168 Benchmark]: Toolchain (without parser) took 4597.54 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 101.2 MB in the beginning and 195.6 MB in the end (delta: -94.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,952 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.94 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 160.8 MB in the end (delta: -61.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.13 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,954 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,955 INFO L168 Benchmark]: RCFGBuilder took 514.08 ms. Allocated memory is still 204.5 MB. Free memory was 156.8 MB in the beginning and 134.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:24,956 INFO L168 Benchmark]: TraceAbstraction took 3179.52 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 134.2 MB in the beginning and 195.6 MB in the end (delta: -61.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:41:24,960 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.94 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 99.1 MB in the beginning and 160.8 MB in the end (delta: -61.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.13 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 514.08 ms. Allocated memory is still 204.5 MB. Free memory was 156.8 MB in the beginning and 134.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3179.52 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 134.2 MB in the beginning and 195.6 MB in the end (delta: -61.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 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: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 124 SDtfs, 130 SDslu, 169 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2462 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...