/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:17:12,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:17:12,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:17:12,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:17:12,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:17:12,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:17:12,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:17:13,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:17:13,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:17:13,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:17:13,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:17:13,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:17:13,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:17:13,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:17:13,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:17:13,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:17:13,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:17:13,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:17:13,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:17:13,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:17:13,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:17:13,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:17:13,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:17:13,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:17:13,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:17:13,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:17:13,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:17:13,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:17:13,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:17:13,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:17:13,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:17:13,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:17:13,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:17:13,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:17:13,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:17:13,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:17:13,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:17:13,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:17:13,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:17:13,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:17:13,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:17:13,090 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:17:13,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:17:13,090 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:17:13,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:17:13,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:17:13,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:17:13,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:17:13,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:17:13,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:17:13,091 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:17:13,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:17:13,092 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:17:13,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:17:13,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:17:13,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:17:13,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:17:13,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:17:13,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:17:13,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:17:13,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:17:13,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:17:13,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:17:13,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:17:13,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:17:13,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:17:13,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:17:13,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:17:13,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:17:13,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:17:13,386 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:17:13,386 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:17:13,387 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2019-12-19 05:17:13,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286700154/bf3e5e30c53f4545b23efc7949502f48/FLAGaeb8bb6c0 [2019-12-19 05:17:14,028 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:17:14,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2019-12-19 05:17:14,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286700154/bf3e5e30c53f4545b23efc7949502f48/FLAGaeb8bb6c0 [2019-12-19 05:17:14,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286700154/bf3e5e30c53f4545b23efc7949502f48 [2019-12-19 05:17:14,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:17:14,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:17:14,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:17:14,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:17:14,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:17:14,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:14" (1/1) ... [2019-12-19 05:17:14,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77becb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:14, skipping insertion in model container [2019-12-19 05:17:14,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:14" (1/1) ... [2019-12-19 05:17:14,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:17:14,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:17:14,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:17:14,913 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:17:14,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:17:15,055 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:17:15,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15 WrapperNode [2019-12-19 05:17:15,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:17:15,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:17:15,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:17:15,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:17:15,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:17:15,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:17:15,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:17:15,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:17:15,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (1/1) ... [2019-12-19 05:17:15,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:17:15,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:17:15,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:17:15,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:17:15,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (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 [2019-12-19 05:17:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:17:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:17:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:17:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:17:15,221 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:17:15,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:17:15,222 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:17:15,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:17:15,222 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:17:15,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:17:15,222 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 05:17:15,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 05:17:15,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:17:15,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:17:15,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:17:15,224 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:17:15,592 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:17:15,593 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:17:15,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:15 BoogieIcfgContainer [2019-12-19 05:17:15,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:17:15,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:17:15,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:17:15,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:17:15,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:17:14" (1/3) ... [2019-12-19 05:17:15,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d15e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:17:15, skipping insertion in model container [2019-12-19 05:17:15,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:15" (2/3) ... [2019-12-19 05:17:15,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d15e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:17:15, skipping insertion in model container [2019-12-19 05:17:15,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:15" (3/3) ... [2019-12-19 05:17:15,603 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2019-12-19 05:17:15,614 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:17:15,615 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:17:15,623 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:17:15,624 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:17:15,655 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,655 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,656 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,657 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,658 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,659 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,659 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,659 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,661 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,661 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,661 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,661 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,663 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,664 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,664 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,666 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,666 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,666 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,667 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,667 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,672 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,673 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,673 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,674 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,681 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,682 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,682 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,682 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,685 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,685 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,685 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,686 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,693 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,695 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:17:15,711 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:17:15,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:17:15,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:17:15,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:17:15,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:17:15,734 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:17:15,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:17:15,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:17:15,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:17:15,746 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-19 05:17:16,069 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-19 05:17:16,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-19 05:17:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 05:17:16,095 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:16,097 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:16,099 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:16,106 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-19 05:17:16,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:16,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749690100] [2019-12-19 05:17:16,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:16,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749690100] [2019-12-19 05:17:16,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:16,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:17:16,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923151882] [2019-12-19 05:17:16,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:17:16,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:16,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:17:16,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:17:16,573 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-19 05:17:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:16,744 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-19 05:17:16,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:17:16,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-19 05:17:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:16,802 INFO L225 Difference]: With dead ends: 5710 [2019-12-19 05:17:16,803 INFO L226 Difference]: Without dead ends: 2394 [2019-12-19 05:17:16,807 INFO L631 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 [2019-12-19 05:17:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-19 05:17:17,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-19 05:17:17,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-19 05:17:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-19 05:17:17,052 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-19 05:17:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:17,054 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-19 05:17:17,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:17:17,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-19 05:17:17,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 05:17:17,061 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:17,061 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:17,062 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:17,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:17,062 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-19 05:17:17,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:17,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548623653] [2019-12-19 05:17:17,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:17,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548623653] [2019-12-19 05:17:17,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:17,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:17:17,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451949192] [2019-12-19 05:17:17,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:17:17,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:17,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:17:17,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:17:17,330 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-19 05:17:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:17,452 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-19 05:17:17,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:17:17,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-19 05:17:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:17,477 INFO L225 Difference]: With dead ends: 2565 [2019-12-19 05:17:17,478 INFO L226 Difference]: Without dead ends: 2310 [2019-12-19 05:17:17,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:17,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-19 05:17:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-19 05:17:17,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-19 05:17:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-19 05:17:17,583 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-19 05:17:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:17,583 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-19 05:17:17,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:17:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-19 05:17:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:17:17,589 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:17,589 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:17,590 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:17,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-19 05:17:17,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:17,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742667735] [2019-12-19 05:17:17,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:17,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742667735] [2019-12-19 05:17:17,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:17,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:17:17,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273753619] [2019-12-19 05:17:17,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:17:17,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:17,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:17:17,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:17:17,702 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-19 05:17:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:17,829 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-19 05:17:17,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:17,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-19 05:17:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:17,848 INFO L225 Difference]: With dead ends: 2175 [2019-12-19 05:17:17,848 INFO L226 Difference]: Without dead ends: 1932 [2019-12-19 05:17:17,849 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:17:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-19 05:17:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-19 05:17:17,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-19 05:17:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-19 05:17:17,990 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-19 05:17:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:17,990 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-19 05:17:17,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:17:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-19 05:17:17,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 05:17:17,996 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:17,996 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:17,996 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:17,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-19 05:17:17,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:17,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746555263] [2019-12-19 05:17:17,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:18,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746555263] [2019-12-19 05:17:18,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:18,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:18,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541350220] [2019-12-19 05:17:18,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:18,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:18,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:18,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:18,167 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-19 05:17:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:18,313 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-19 05:17:18,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:18,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 05:17:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:18,323 INFO L225 Difference]: With dead ends: 1365 [2019-12-19 05:17:18,324 INFO L226 Difference]: Without dead ends: 1176 [2019-12-19 05:17:18,325 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:18,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-19 05:17:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-19 05:17:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-19 05:17:18,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-19 05:17:18,366 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-19 05:17:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:18,368 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-19 05:17:18,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-19 05:17:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:18,372 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:18,372 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:18,372 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:18,373 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-19 05:17:18,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:18,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200998934] [2019-12-19 05:17:18,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:18,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200998934] [2019-12-19 05:17:18,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:18,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:17:18,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29651412] [2019-12-19 05:17:18,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:17:18,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:18,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:17:18,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:17:18,585 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-19 05:17:18,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:18,699 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-19 05:17:18,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:18,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-19 05:17:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:18,707 INFO L225 Difference]: With dead ends: 1725 [2019-12-19 05:17:18,707 INFO L226 Difference]: Without dead ends: 876 [2019-12-19 05:17:18,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:17:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-19 05:17:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-19 05:17:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-19 05:17:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-19 05:17:18,762 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-19 05:17:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:18,763 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-19 05:17:18,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:17:18,763 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-19 05:17:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:18,765 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:18,765 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:18,766 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:18,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:18,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-19 05:17:18,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:18,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218813532] [2019-12-19 05:17:18,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:18,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218813532] [2019-12-19 05:17:18,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:18,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:18,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272915374] [2019-12-19 05:17:18,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:18,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:18,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:18,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:18,960 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-19 05:17:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:19,078 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-19 05:17:19,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:19,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:19,087 INFO L225 Difference]: With dead ends: 1389 [2019-12-19 05:17:19,087 INFO L226 Difference]: Without dead ends: 768 [2019-12-19 05:17:19,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-19 05:17:19,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-19 05:17:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-19 05:17:19,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-19 05:17:19,115 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-19 05:17:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:19,118 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-19 05:17:19,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:19,119 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-19 05:17:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:19,123 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:19,124 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:19,124 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:19,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:19,124 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-19 05:17:19,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:19,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879309180] [2019-12-19 05:17:19,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:19,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879309180] [2019-12-19 05:17:19,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:19,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:19,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124848021] [2019-12-19 05:17:19,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:19,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:19,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:19,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:19,235 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-19 05:17:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:19,342 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-19 05:17:19,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:17:19,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:19,349 INFO L225 Difference]: With dead ends: 1254 [2019-12-19 05:17:19,349 INFO L226 Difference]: Without dead ends: 717 [2019-12-19 05:17:19,349 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-19 05:17:19,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-19 05:17:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-19 05:17:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-19 05:17:19,377 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-19 05:17:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:19,377 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-19 05:17:19,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-19 05:17:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:17:19,380 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:17:19,380 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:17:19,380 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:17:19,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:17:19,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-19 05:17:19,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:17:19,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252959906] [2019-12-19 05:17:19,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:17:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:17:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:17:19,515 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252959906] [2019-12-19 05:17:19,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:17:19,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:17:19,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498453422] [2019-12-19 05:17:19,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:17:19,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:17:19,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:17:19,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:17:19,517 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-19 05:17:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:17:19,652 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-19 05:17:19,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:17:19,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-19 05:17:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:17:19,653 INFO L225 Difference]: With dead ends: 555 [2019-12-19 05:17:19,653 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:17:19,653 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:17:19,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:17:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:17:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:17:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:17:19,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-19 05:17:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:17:19,654 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:17:19,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:17:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:17:19,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:17:19,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:17:19 BasicIcfg [2019-12-19 05:17:19,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:17:19,664 INFO L168 Benchmark]: Toolchain (without parser) took 5339.00 ms. Allocated memory was 146.3 MB in the beginning and 316.1 MB in the end (delta: 169.9 MB). Free memory was 102.9 MB in the beginning and 134.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,665 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:17:19,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.04 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 159.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,667 INFO L168 Benchmark]: Boogie Preprocessor took 29.93 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 156.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,668 INFO L168 Benchmark]: RCFGBuilder took 454.89 ms. Allocated memory is still 203.9 MB. Free memory was 156.2 MB in the beginning and 134.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,669 INFO L168 Benchmark]: TraceAbstraction took 4065.51 ms. Allocated memory was 203.9 MB in the beginning and 316.1 MB in the end (delta: 112.2 MB). Free memory was 133.5 MB in the beginning and 134.4 MB in the end (delta: -873.9 kB). Peak memory consumption was 111.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:17:19,673 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 146.3 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.04 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 159.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.73 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.93 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 156.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.89 ms. Allocated memory is still 203.9 MB. Free memory was 156.2 MB in the beginning and 134.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4065.51 ms. Allocated memory was 203.9 MB in the beginning and 316.1 MB in the end (delta: 112.2 MB). Free memory was 133.5 MB in the beginning and 134.4 MB in the end (delta: -873.9 kB). Peak memory consumption was 111.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 697 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...