/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/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:32:35,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:32:35,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:32:35,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:32:35,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:32:35,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:32:35,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:32:35,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:32:35,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:32:35,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:32:35,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:32:35,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:32:35,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:32:35,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:32:35,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:32:35,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:32:35,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:32:35,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:32:35,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:32:35,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:32:35,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:32:35,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:32:35,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:32:35,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:32:35,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:32:35,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:32:35,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:32:35,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:32:35,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:32:35,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:32:35,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:32:35,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:32:35,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:32:35,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:32:35,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:32:35,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:32:35,215 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 05:32:35,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:32:35,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:32:35,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:32:35,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:32:35,239 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:32:35,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:32:35,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:32:35,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:32:35,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:32:35,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:32:35,242 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:32:35,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:32:35,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:32:35,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:32:35,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:32:35,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:32:35,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:32:35,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:32:35,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:32:35,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:32:35,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:32:35,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:32:35,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:32:35,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:32:35,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:32:35,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:32:35,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:32:35,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:32:35,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:32:35,546 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:32:35,547 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-19 05:32:35,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e06f573/fcc74b0914614937b4fe7e849314c410/FLAG04998231d [2019-12-19 05:32:36,167 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:32:36,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2019-12-19 05:32:36,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e06f573/fcc74b0914614937b4fe7e849314c410/FLAG04998231d [2019-12-19 05:32:36,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e06f573/fcc74b0914614937b4fe7e849314c410 [2019-12-19 05:32:36,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:32:36,484 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:32:36,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:32:36,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:32:36,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:32:36,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:32:36" (1/1) ... [2019-12-19 05:32:36,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255ab7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:36, skipping insertion in model container [2019-12-19 05:32:36,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:32:36" (1/1) ... [2019-12-19 05:32:36,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:32:36,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:32:37,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:32:37,058 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:32:37,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:32:37,183 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:32:37,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37 WrapperNode [2019-12-19 05:32:37,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:32:37,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:32:37,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:32:37,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:32:37,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:32:37,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:32:37,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:32:37,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:32:37,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (1/1) ... [2019-12-19 05:32:37,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:32:37,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:32:37,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:32:37,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:32:37,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (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 05:32:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:32:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:32:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:32:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:32:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:32:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:32:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:32:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:32:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:32:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:32:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:32:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:32:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:32:37,345 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 05:32:37,688 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:32:37,689 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:32:37,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:32:37 BoogieIcfgContainer [2019-12-19 05:32:37,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:32:37,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:32:37,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:32:37,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:32:37,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:32:36" (1/3) ... [2019-12-19 05:32:37,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfed86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:32:37, skipping insertion in model container [2019-12-19 05:32:37,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:37" (2/3) ... [2019-12-19 05:32:37,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfed86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:32:37, skipping insertion in model container [2019-12-19 05:32:37,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:32:37" (3/3) ... [2019-12-19 05:32:37,698 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2019-12-19 05:32:37,708 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:32:37,708 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:32:37,715 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:32:37,716 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:32:37,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,746 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,747 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,748 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,748 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,749 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,750 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,750 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,750 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,751 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,751 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,751 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,752 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,752 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,752 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,752 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,756 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,757 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,757 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,762 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,763 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,763 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,763 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,765 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,766 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:37,781 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:32:37,797 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:32:37,797 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:32:37,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:32:37,798 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:32:37,798 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:32:37,798 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:32:37,798 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:32:37,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:32:37,809 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:32:37,904 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:32:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:32:37,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:32:37,936 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:37,938 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] [2019-12-19 05:32:37,938 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:37,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1045891057, now seen corresponding path program 1 times [2019-12-19 05:32:37,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:37,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038061069] [2019-12-19 05:32:37,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:38,343 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 05:32:38,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038061069] [2019-12-19 05:32:38,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:38,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:32:38,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163108104] [2019-12-19 05:32:38,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:32:38,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:32:38,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:32:38,372 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:32:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:38,490 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:32:38,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:32:38,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:32:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:38,534 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:32:38,574 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:32:38,578 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 05:32:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:32:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:32:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:32:38,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:32:38,695 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:32:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:38,696 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:32:38,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:32:38,696 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:32:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:32:38,699 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:38,699 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] [2019-12-19 05:32:38,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:38,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1152838682, now seen corresponding path program 1 times [2019-12-19 05:32:38,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:38,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465902375] [2019-12-19 05:32:38,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:38,889 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 05:32:38,889 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465902375] [2019-12-19 05:32:38,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:38,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:32:38,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242922637] [2019-12-19 05:32:38,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:32:38,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:38,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:32:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:32:38,893 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:32:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:38,965 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:32:38,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:32:38,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:32:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:38,970 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:32:38,971 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:32:38,972 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 05:32:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:32:38,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:32:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:32:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:32:39,001 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:32:39,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:39,002 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:32:39,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:32:39,002 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:32:39,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:32:39,004 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:39,004 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] [2019-12-19 05:32:39,004 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:39,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1131850048, now seen corresponding path program 1 times [2019-12-19 05:32:39,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:39,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9663387] [2019-12-19 05:32:39,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:39,165 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 05:32:39,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9663387] [2019-12-19 05:32:39,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:39,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:32:39,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187926553] [2019-12-19 05:32:39,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:32:39,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:39,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:32:39,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:32:39,168 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:32:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:39,245 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:32:39,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:32:39,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:32:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:39,248 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:32:39,249 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:32:39,249 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 05:32:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:32:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:32:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:32:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:32:39,261 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:32:39,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:39,262 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:32:39,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:32:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:32:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:32:39,264 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:39,264 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] [2019-12-19 05:32:39,264 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:39,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1370796524, now seen corresponding path program 1 times [2019-12-19 05:32:39,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:39,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556375496] [2019-12-19 05:32:39,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:39,412 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 05:32:39,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556375496] [2019-12-19 05:32:39,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:39,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:32:39,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656177692] [2019-12-19 05:32:39,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:32:39,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:39,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:32:39,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:32:39,415 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:32:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:39,589 INFO L93 Difference]: Finished difference Result 574 states and 1521 transitions. [2019-12-19 05:32:39,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:32:39,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:32:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:39,593 INFO L225 Difference]: With dead ends: 574 [2019-12-19 05:32:39,593 INFO L226 Difference]: Without dead ends: 289 [2019-12-19 05:32:39,595 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 05:32:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2019-12-19 05:32:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 280. [2019-12-19 05:32:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-19 05:32:39,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-19 05:32:39,609 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-19 05:32:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:39,609 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-19 05:32:39,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:32:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-19 05:32:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:32:39,611 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:39,612 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] [2019-12-19 05:32:39,612 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:39,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:39,612 INFO L82 PathProgramCache]: Analyzing trace with hash 332629140, now seen corresponding path program 2 times [2019-12-19 05:32:39,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:39,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318247030] [2019-12-19 05:32:39,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:39,790 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 05:32:39,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318247030] [2019-12-19 05:32:39,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:39,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:32:39,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608218243] [2019-12-19 05:32:39,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:32:39,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:39,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:32:39,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:32:39,793 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-19 05:32:39,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:39,963 INFO L93 Difference]: Finished difference Result 235 states and 585 transitions. [2019-12-19 05:32:39,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:32:39,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:32:39,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:39,964 INFO L225 Difference]: With dead ends: 235 [2019-12-19 05:32:39,964 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:32:39,966 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 05:32:39,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:32:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:32:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:32:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:32:39,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:32:39,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:39,969 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:32:39,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:32:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:32:39,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:32:39,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:32:39 BasicIcfg [2019-12-19 05:32:39,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:32:39,985 INFO L168 Benchmark]: Toolchain (without parser) took 3498.85 ms. Allocated memory was 137.9 MB in the beginning and 255.3 MB in the end (delta: 117.4 MB). Free memory was 101.7 MB in the beginning and 203.2 MB in the end (delta: -101.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:39,987 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:32:39,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.77 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 159.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:39,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.55 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:39,998 INFO L168 Benchmark]: Boogie Preprocessor took 27.15 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:40,000 INFO L168 Benchmark]: RCFGBuilder took 419.50 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:40,003 INFO L168 Benchmark]: TraceAbstraction took 2289.30 ms. Allocated memory was 202.4 MB in the beginning and 255.3 MB in the end (delta: 53.0 MB). Free memory was 134.9 MB in the beginning and 203.2 MB in the end (delta: -68.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:32:40,013 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.77 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 159.7 MB in the end (delta: -58.5 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.55 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.15 ms. Allocated memory is still 202.4 MB. Free memory was 157.0 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.50 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2289.30 ms. Allocated memory was 202.4 MB in the beginning and 255.3 MB in the end (delta: 53.0 MB). Free memory was 134.9 MB in the beginning and 203.2 MB in the end (delta: -68.2 MB). There was no memory consumed. 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 328 SDslu, 613 SDs, 0 SdLazy, 92 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...