/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/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:54:01,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:54:01,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:54:01,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:54:01,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:54:01,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:54:01,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:54:01,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:54:01,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:54:01,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:54:01,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:54:01,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:54:01,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:54:01,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:54:01,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:54:01,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:54:01,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:54:01,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:54:01,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:54:01,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:54:01,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:54:01,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:54:01,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:54:01,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:54:01,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:54:01,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:54:01,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:54:01,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:54:01,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:54:01,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:54:01,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:54:01,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:54:01,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:54:01,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:54:01,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:54:01,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:54:01,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:54:01,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:54:01,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:54:01,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:54:01,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:54:01,065 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 02:54:01,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:54:01,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:54:01,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:54:01,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:54:01,081 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:54:01,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:54:01,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:54:01,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:54:01,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:54:01,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:54:01,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:54:01,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:54:01,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:54:01,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:54:01,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:54:01,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:54:01,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:54:01,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:54:01,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:54:01,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:54:01,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:54:01,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:54:01,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:54:01,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:54:01,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:54:01,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:54:01,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:54:01,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:54:01,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:54:01,393 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:54:01,394 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-04-18 02:54:01,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04cb66b2/c5e41a694c2545b095350ccbd4e3e039/FLAG44385d2c2 [2020-04-18 02:54:02,003 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:54:02,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-04-18 02:54:02,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04cb66b2/c5e41a694c2545b095350ccbd4e3e039/FLAG44385d2c2 [2020-04-18 02:54:02,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04cb66b2/c5e41a694c2545b095350ccbd4e3e039 [2020-04-18 02:54:02,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:54:02,310 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:54:02,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:54:02,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:54:02,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:54:02,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:02,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee12d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02, skipping insertion in model container [2020-04-18 02:54:02,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:02,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:54:02,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:54:02,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:54:02,830 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:54:02,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:54:02,976 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:54:02,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02 WrapperNode [2020-04-18 02:54:02,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:54:02,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:54:02,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:54:02,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:54:02,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:54:03,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:54:03,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:54:03,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:54:03,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (1/1) ... [2020-04-18 02:54:03,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:54:03,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:54:03,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:54:03,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:54:03,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (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 02:54:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:54:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:54:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:54:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:54:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:54:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:54:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:54:03,118 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:54:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:54:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:54:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:54:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:54:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:54:03,121 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 02:54:03,500 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:54:03,500 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:54:03,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:54:03 BoogieIcfgContainer [2020-04-18 02:54:03,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:54:03,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:54:03,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:54:03,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:54:03,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:54:02" (1/3) ... [2020-04-18 02:54:03,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d42a54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:54:03, skipping insertion in model container [2020-04-18 02:54:03,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:54:02" (2/3) ... [2020-04-18 02:54:03,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d42a54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:54:03, skipping insertion in model container [2020-04-18 02:54:03,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:54:03" (3/3) ... [2020-04-18 02:54:03,513 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-04-18 02:54:03,523 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:54:03,524 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:54:03,531 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:54:03,533 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:54:03,570 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,571 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,571 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,575 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,575 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,576 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,577 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,577 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,577 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,578 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,578 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,584 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,585 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,585 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,585 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,593 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,594 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,594 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,595 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,597 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,597 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:54:03,614 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:54:03,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:54:03,635 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:54:03,636 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:54:03,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:54:03,636 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:54:03,636 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:54:03,636 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:54:03,637 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:54:03,653 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 02:54:03,655 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 02:54:03,700 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 02:54:03,701 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:54:03,706 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:54:03,709 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 02:54:03,736 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 02:54:03,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:54:03,737 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 02:54:03,739 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:54:03,742 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:54:04,891 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 02:54:04,981 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-04-18 02:54:04,981 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 02:54:04,985 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 02:54:05,018 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 02:54:05,021 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 02:54:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:54:05,030 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:05,031 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:05,032 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:05,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-04-18 02:54:05,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:05,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769219137] [2020-04-18 02:54:05,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:05,294 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 02:54:05,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769219137] [2020-04-18 02:54:05,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:05,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:54:05,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65054596] [2020-04-18 02:54:05,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:54:05,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:05,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:54:05,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:54:05,329 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 02:54:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:05,369 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 02:54:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:54:05,371 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 02:54:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:05,394 INFO L225 Difference]: With dead ends: 362 [2020-04-18 02:54:05,395 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 02:54:05,396 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 02:54:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 02:54:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 02:54:05,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 02:54:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 02:54:05,530 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 02:54:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:05,531 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 02:54:05,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:54:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 02:54:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:54:05,534 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:05,534 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:05,534 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-04-18 02:54:05,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:05,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951574957] [2020-04-18 02:54:05,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:05,696 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 02:54:05,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951574957] [2020-04-18 02:54:05,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:05,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:54:05,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938113147] [2020-04-18 02:54:05,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:54:05,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:05,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:54:05,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:54:05,700 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-18 02:54:05,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:05,732 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-18 02:54:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:54:05,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 02:54:05,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:05,735 INFO L225 Difference]: With dead ends: 217 [2020-04-18 02:54:05,735 INFO L226 Difference]: Without dead ends: 217 [2020-04-18 02:54:05,739 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 02:54:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-18 02:54:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-18 02:54:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-18 02:54:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-18 02:54:05,761 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-18 02:54:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:05,761 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-18 02:54:05,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:54:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-18 02:54:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:54:05,763 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:05,763 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:05,763 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:05,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-04-18 02:54:05,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:05,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471509919] [2020-04-18 02:54:05,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:05,832 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 02:54:05,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471509919] [2020-04-18 02:54:05,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:05,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:54:05,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143415559] [2020-04-18 02:54:05,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:54:05,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:05,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:54:05,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:54:05,835 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-04-18 02:54:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:05,874 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-18 02:54:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:54:05,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:54:05,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:05,876 INFO L225 Difference]: With dead ends: 136 [2020-04-18 02:54:05,876 INFO L226 Difference]: Without dead ends: 136 [2020-04-18 02:54:05,877 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 02:54:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-18 02:54:05,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-18 02:54:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-18 02:54:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-18 02:54:05,883 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-18 02:54:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:05,883 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-18 02:54:05,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:54:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-18 02:54:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:54:05,885 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:05,885 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:54:05,885 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-04-18 02:54:05,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:05,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407405451] [2020-04-18 02:54:05,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:05,953 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 02:54:05,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407405451] [2020-04-18 02:54:05,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:05,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:54:05,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957665039] [2020-04-18 02:54:05,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:54:05,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:05,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:54:05,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:05,958 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-04-18 02:54:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:05,996 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-18 02:54:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:54:05,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-18 02:54:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:05,998 INFO L225 Difference]: With dead ends: 109 [2020-04-18 02:54:05,998 INFO L226 Difference]: Without dead ends: 109 [2020-04-18 02:54:05,998 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 02:54:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-18 02:54:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-18 02:54:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-18 02:54:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-18 02:54:06,003 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-18 02:54:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:06,003 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-18 02:54:06,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:54:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-18 02:54:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:54:06,005 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:06,005 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 02:54:06,005 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:06,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-04-18 02:54:06,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:06,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628007832] [2020-04-18 02:54:06,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:06,087 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 02:54:06,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628007832] [2020-04-18 02:54:06,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:06,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:54:06,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186207224] [2020-04-18 02:54:06,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:54:06,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:06,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:54:06,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:06,090 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-04-18 02:54:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:06,136 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-04-18 02:54:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:54:06,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-18 02:54:06,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:06,138 INFO L225 Difference]: With dead ends: 135 [2020-04-18 02:54:06,138 INFO L226 Difference]: Without dead ends: 85 [2020-04-18 02:54:06,138 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:54:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-18 02:54:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-18 02:54:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-18 02:54:06,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-04-18 02:54:06,142 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-04-18 02:54:06,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:06,142 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-04-18 02:54:06,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:54:06,143 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-04-18 02:54:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:54:06,143 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:06,144 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 02:54:06,144 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:06,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:06,144 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-04-18 02:54:06,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:06,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937629554] [2020-04-18 02:54:06,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:06,264 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 02:54:06,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937629554] [2020-04-18 02:54:06,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:06,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:54:06,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303573304] [2020-04-18 02:54:06,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:54:06,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:06,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:54:06,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:06,267 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-04-18 02:54:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:06,309 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-04-18 02:54:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:54:06,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-18 02:54:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:06,310 INFO L225 Difference]: With dead ends: 99 [2020-04-18 02:54:06,310 INFO L226 Difference]: Without dead ends: 37 [2020-04-18 02:54:06,310 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:54:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-04-18 02:54:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-04-18 02:54:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-04-18 02:54:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-04-18 02:54:06,313 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-04-18 02:54:06,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:06,313 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-04-18 02:54:06,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:54:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-04-18 02:54:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:54:06,314 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:54:06,314 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 02:54:06,315 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:54:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:54:06,315 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-04-18 02:54:06,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:54:06,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643797015] [2020-04-18 02:54:06,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:54:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:54:06,411 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 02:54:06,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643797015] [2020-04-18 02:54:06,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:54:06,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:54:06,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16819928] [2020-04-18 02:54:06,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:54:06,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:54:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:54:06,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:54:06,414 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-04-18 02:54:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:54:06,438 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-04-18 02:54:06,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:54:06,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-18 02:54:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:54:06,439 INFO L225 Difference]: With dead ends: 36 [2020-04-18 02:54:06,439 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:54:06,440 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:54:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:54:06,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:54:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:54:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:54:06,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 02:54:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:54:06,441 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:54:06,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:54:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:54:06,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:54:06,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:54:06 BasicIcfg [2020-04-18 02:54:06,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:54:06,446 INFO L168 Benchmark]: Toolchain (without parser) took 4151.88 ms. Allocated memory was 145.2 MB in the beginning and 246.4 MB in the end (delta: 101.2 MB). Free memory was 101.4 MB in the beginning and 126.1 MB in the end (delta: -24.8 MB). Peak memory consumption was 76.4 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,447 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.00 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 158.8 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,449 INFO L168 Benchmark]: Boogie Preprocessor took 27.11 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 154.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,450 INFO L168 Benchmark]: RCFGBuilder took 447.29 ms. Allocated memory is still 202.4 MB. Free memory was 154.9 MB in the beginning and 132.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,451 INFO L168 Benchmark]: TraceAbstraction took 2938.99 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 132.8 MB in the beginning and 126.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:54:06,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.00 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 158.8 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.11 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 154.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.29 ms. Allocated memory is still 202.4 MB. Free memory was 154.9 MB in the beginning and 132.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2938.99 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 132.8 MB in the beginning and 126.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 50.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 640 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...