/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/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:57:20,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:57:20,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:57:20,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:57:20,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:57:20,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:57:20,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:57:20,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:57:20,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:57:20,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:57:20,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:57:20,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:57:20,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:57:20,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:57:20,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:57:20,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:57:20,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:57:20,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:57:20,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:57:20,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:57:20,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:57:20,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:57:20,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:57:20,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:57:20,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:57:20,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:57:20,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:57:20,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:57:20,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:57:20,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:57:20,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:57:20,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:57:20,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:57:20,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:57:20,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:57:20,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:57:20,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:57:20,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:57:20,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:57:20,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:57:20,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:57:20,242 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 [2019-12-27 13:57:20,269 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:57:20,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:57:20,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:57:20,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:57:20,272 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:57:20,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:57:20,272 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:57:20,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:57:20,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:57:20,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:57:20,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:57:20,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:57:20,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:57:20,275 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:57:20,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:57:20,275 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:57:20,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:57:20,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:57:20,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:57:20,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:57:20,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:57:20,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:57:20,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:57:20,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:57:20,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:57:20,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:57:20,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:57:20,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:57:20,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:57:20,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:57:20,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:57:20,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:57:20,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:57:20,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:57:20,581 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:57:20,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-27 13:57:20,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c68a219b/74292ff67cc34374a86373eb1fa5ed3b/FLAG644b5315b [2019-12-27 13:57:21,200 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:57:21,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-27 13:57:21,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c68a219b/74292ff67cc34374a86373eb1fa5ed3b/FLAG644b5315b [2019-12-27 13:57:21,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c68a219b/74292ff67cc34374a86373eb1fa5ed3b [2019-12-27 13:57:21,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:57:21,536 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:57:21,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:57:21,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:57:21,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:57:21,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:57:21" (1/1) ... [2019-12-27 13:57:21,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2257a400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:21, skipping insertion in model container [2019-12-27 13:57:21,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:57:21" (1/1) ... [2019-12-27 13:57:21,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:57:21,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:57:22,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:57:22,104 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:57:22,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:57:22,250 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:57:22,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22 WrapperNode [2019-12-27 13:57:22,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:57:22,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:57:22,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:57:22,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:57:22,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:57:22,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:57:22,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:57:22,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:57:22,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (1/1) ... [2019-12-27 13:57:22,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:57:22,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:57:22,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:57:22,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:57:22,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (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 [2019-12-27 13:57:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:57:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:57:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:57:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:57:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:57:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:57:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:57:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:57:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:57:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:57:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:57:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:57:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:57:22,388 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 13:57:22,742 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:57:22,743 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:57:22,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:57:22 BoogieIcfgContainer [2019-12-27 13:57:22,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:57:22,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:57:22,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:57:22,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:57:22,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:57:21" (1/3) ... [2019-12-27 13:57:22,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a0baca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:57:22, skipping insertion in model container [2019-12-27 13:57:22,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:57:22" (2/3) ... [2019-12-27 13:57:22,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a0baca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:57:22, skipping insertion in model container [2019-12-27 13:57:22,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:57:22" (3/3) ... [2019-12-27 13:57:22,753 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2019-12-27 13:57:22,764 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:57:22,765 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:57:22,771 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:57:22,772 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:57:22,801 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,802 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,802 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,802 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,804 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,804 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,804 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,805 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,805 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,805 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,806 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,806 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,806 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,806 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,807 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,807 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,811 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,812 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,818 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,819 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,819 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,820 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,823 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,823 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,823 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,823 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:57:22,836 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:57:22,856 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:57:22,857 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:57:22,857 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:57:22,857 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:57:22,857 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:57:22,858 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:57:22,858 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:57:22,858 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:57:22,870 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 13:57:22,963 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 13:57:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 13:57:22,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:57:22,996 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:22,998 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] [2019-12-27 13:57:22,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:23,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:23,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1559723610, now seen corresponding path program 1 times [2019-12-27 13:57:23,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:23,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268799701] [2019-12-27 13:57:23,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:23,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268799701] [2019-12-27 13:57:23,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:23,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:57:23,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686985766] [2019-12-27 13:57:23,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:57:23,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:23,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:57:23,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:57:23,507 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 13:57:23,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:23,691 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 13:57:23,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:57:23,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 13:57:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:23,729 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 13:57:23,729 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 13:57:23,732 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 [2019-12-27 13:57:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 13:57:23,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 13:57:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 13:57:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 13:57:23,863 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 13:57:23,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:23,864 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 13:57:23,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:57:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 13:57:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:57:23,868 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:23,868 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] [2019-12-27 13:57:23,869 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:23,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1171273147, now seen corresponding path program 1 times [2019-12-27 13:57:23,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:23,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40043613] [2019-12-27 13:57:23,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:24,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40043613] [2019-12-27 13:57:24,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:24,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:57:24,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832914454] [2019-12-27 13:57:24,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:57:24,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:24,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:57:24,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:57:24,026 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 13:57:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:24,115 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 13:57:24,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:57:24,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 13:57:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:24,122 INFO L225 Difference]: With dead ends: 601 [2019-12-27 13:57:24,123 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 13:57:24,130 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 [2019-12-27 13:57:24,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 13:57:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 13:57:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 13:57:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 13:57:24,152 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 13:57:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:24,153 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 13:57:24,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:57:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 13:57:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:57:24,155 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:24,155 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] [2019-12-27 13:57:24,156 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1777429343, now seen corresponding path program 1 times [2019-12-27 13:57:24,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:24,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251269354] [2019-12-27 13:57:24,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:24,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251269354] [2019-12-27 13:57:24,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:24,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:57:24,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407024058] [2019-12-27 13:57:24,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:57:24,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:24,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:57:24,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:57:24,338 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 13:57:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:24,436 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 13:57:24,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:57:24,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 13:57:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:24,439 INFO L225 Difference]: With dead ends: 403 [2019-12-27 13:57:24,440 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 13:57:24,440 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 [2019-12-27 13:57:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 13:57:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 13:57:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 13:57:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 13:57:24,451 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 13:57:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:24,452 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 13:57:24,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:57:24,452 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 13:57:24,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:24,454 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:24,454 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] [2019-12-27 13:57:24,454 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:24,455 INFO L82 PathProgramCache]: Analyzing trace with hash -960362357, now seen corresponding path program 1 times [2019-12-27 13:57:24,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:24,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371992638] [2019-12-27 13:57:24,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:24,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371992638] [2019-12-27 13:57:24,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:24,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:57:24,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641594785] [2019-12-27 13:57:24,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:57:24,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:24,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:57:24,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:57:24,565 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 13:57:24,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:24,710 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-27 13:57:24,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:57:24,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 13:57:24,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:24,713 INFO L225 Difference]: With dead ends: 556 [2019-12-27 13:57:24,713 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 13:57:24,714 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 [2019-12-27 13:57:24,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 13:57:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-27 13:57:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-27 13:57:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-27 13:57:24,725 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-27 13:57:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:24,726 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-27 13:57:24,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:57:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-27 13:57:24,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:24,728 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:24,728 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] [2019-12-27 13:57:24,728 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:24,729 INFO L82 PathProgramCache]: Analyzing trace with hash -908726199, now seen corresponding path program 2 times [2019-12-27 13:57:24,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:24,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308471608] [2019-12-27 13:57:24,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:24,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308471608] [2019-12-27 13:57:24,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:24,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:57:24,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452689578] [2019-12-27 13:57:24,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:57:24,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:24,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:57:24,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:57:24,900 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-27 13:57:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:25,056 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-27 13:57:25,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 13:57:25,057 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:57:25,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:25,061 INFO L225 Difference]: With dead ends: 487 [2019-12-27 13:57:25,062 INFO L226 Difference]: Without dead ends: 313 [2019-12-27 13:57:25,062 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 [2019-12-27 13:57:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-27 13:57:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-27 13:57:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-27 13:57:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-27 13:57:25,077 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-27 13:57:25,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:25,078 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-27 13:57:25,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:57:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-27 13:57:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:57:25,080 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:57:25,081 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] [2019-12-27 13:57:25,085 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:57:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:57:25,086 INFO L82 PathProgramCache]: Analyzing trace with hash 76422447, now seen corresponding path program 3 times [2019-12-27 13:57:25,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:57:25,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134434443] [2019-12-27 13:57:25,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:57:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:57:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:57:25,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134434443] [2019-12-27 13:57:25,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:57:25,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:57:25,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055691097] [2019-12-27 13:57:25,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:57:25,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:57:25,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:57:25,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:57:25,270 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 8 states. [2019-12-27 13:57:25,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:57:25,362 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-27 13:57:25,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:57:25,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:57:25,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:57:25,363 INFO L225 Difference]: With dead ends: 259 [2019-12-27 13:57:25,363 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:57:25,363 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 [2019-12-27 13:57:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:57:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:57:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:57:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:57:25,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 13:57:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:57:25,364 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:57:25,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:57:25,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:57:25,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:57:25,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:57:25 BasicIcfg [2019-12-27 13:57:25,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:57:25,377 INFO L168 Benchmark]: Toolchain (without parser) took 3838.94 ms. Allocated memory was 140.5 MB in the beginning and 246.4 MB in the end (delta: 105.9 MB). Free memory was 104.3 MB in the beginning and 153.8 MB in the end (delta: -49.5 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,378 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.77 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 104.1 MB in the beginning and 162.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.04 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,386 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 205.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,387 INFO L168 Benchmark]: RCFGBuilder took 414.11 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 138.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,388 INFO L168 Benchmark]: TraceAbstraction took 2626.97 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 137.5 MB in the beginning and 153.8 MB in the end (delta: -16.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-12-27 13:57:25,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 140.5 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 713.77 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 104.1 MB in the beginning and 162.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.04 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 159.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 205.5 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.11 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 138.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2626.97 ms. Allocated memory was 205.5 MB in the beginning and 246.4 MB in the end (delta: 40.9 MB). Free memory was 137.5 MB in the beginning and 153.8 MB in the end (delta: -16.3 MB). Peak memory consumption was 24.6 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 294 SDtfs, 382 SDslu, 805 SDs, 0 SdLazy, 123 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...