/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:09:04,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:09:04,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:09:04,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:09:04,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:09:04,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:09:04,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:09:04,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:09:04,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:09:04,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:09:04,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:09:04,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:09:04,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:09:04,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:09:04,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:09:04,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:09:04,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:09:04,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:09:04,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:09:04,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:09:04,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:09:04,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:09:04,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:09:04,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:09:04,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:09:04,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:09:04,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:09:04,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:09:04,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:09:04,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:09:04,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:09:04,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:09:04,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:09:04,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:09:04,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:09:04,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:09:04,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:09:04,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:09:04,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:09:04,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:09:04,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:09:04,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:09:04,276 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:09:04,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:09:04,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:09:04,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:09:04,278 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:09:04,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:09:04,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:09:04,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:09:04,279 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:09:04,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:09:04,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:09:04,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:09:04,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:09:04,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:09:04,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:09:04,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:09:04,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:09:04,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:09:04,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:09:04,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:09:04,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:09:04,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:09:04,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:09:04,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:09:04,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:09:04,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:09:04,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:09:04,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:09:04,616 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:09:04,617 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-10-16 12:09:04,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1889afaf/7975bb7cfa304c3fab4659f35a0427c2/FLAG2238a5b51 [2020-10-16 12:09:05,250 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:09:05,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc.i [2020-10-16 12:09:05,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1889afaf/7975bb7cfa304c3fab4659f35a0427c2/FLAG2238a5b51 [2020-10-16 12:09:05,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1889afaf/7975bb7cfa304c3fab4659f35a0427c2 [2020-10-16 12:09:05,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:09:05,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:09:05,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:09:05,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:09:05,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:09:05,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:09:05" (1/1) ... [2020-10-16 12:09:05,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7525677e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:05, skipping insertion in model container [2020-10-16 12:09:05,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:09:05" (1/1) ... [2020-10-16 12:09:05,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:09:05,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:09:06,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:09:06,176 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:09:06,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:09:06,296 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:09:06,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06 WrapperNode [2020-10-16 12:09:06,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:09:06,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:09:06,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:09:06,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:09:06,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:09:06,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:09:06,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:09:06,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:09:06,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... [2020-10-16 12:09:06,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:09:06,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:09:06,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:09:06,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:09:06,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:09:06,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:09:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:09:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:09:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:09:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:09:06,462 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:09:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:09:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:09:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 12:09:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 12:09:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:09:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:09:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:09:06,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:09:06,851 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:09:06,851 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:09:06,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:09:06 BoogieIcfgContainer [2020-10-16 12:09:06,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:09:06,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:09:06,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:09:06,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:09:06,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:09:05" (1/3) ... [2020-10-16 12:09:06,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312c2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:09:06, skipping insertion in model container [2020-10-16 12:09:06,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:09:06" (2/3) ... [2020-10-16 12:09:06,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312c2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:09:06, skipping insertion in model container [2020-10-16 12:09:06,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:09:06" (3/3) ... [2020-10-16 12:09:06,863 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2020-10-16 12:09:06,875 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:09:06,876 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:09:06,883 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:09:06,884 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:09:06,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,923 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,923 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,929 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,929 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,941 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,942 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,942 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,945 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,945 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,945 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,946 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:09:06,948 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:09:06,964 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:09:06,988 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:09:06,988 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:09:06,989 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:09:06,989 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:09:06,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:09:06,989 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:09:06,989 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:09:06,990 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:09:07,006 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:09:07,007 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 12:09:07,010 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 12:09:07,012 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 12:09:07,060 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 12:09:07,061 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:09:07,067 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 12:09:07,070 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 12:09:08,536 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-16 12:09:08,536 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-16 12:09:08,543 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 12:09:08,571 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 12:09:08,573 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 12:09:08,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:09:08,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:08,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:08,583 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:08,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:08,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-16 12:09:08,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:08,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662035997] [2020-10-16 12:09:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:08,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662035997] [2020-10-16 12:09:08,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:08,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:09:08,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661211136] [2020-10-16 12:09:08,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:09:08,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:08,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:09:08,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:08,861 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 12:09:08,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:08,912 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-16 12:09:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:09:08,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:09:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:08,939 INFO L225 Difference]: With dead ends: 282 [2020-10-16 12:09:08,939 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 12:09:08,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 12:09:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-16 12:09:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 12:09:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-16 12:09:09,017 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-16 12:09:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,018 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-16 12:09:09,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:09:09,019 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-16 12:09:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:09:09,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:09:09,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-16 12:09:09,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944734842] [2020-10-16 12:09:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944734842] [2020-10-16 12:09:09,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:09,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169256322] [2020-10-16 12:09:09,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:09,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:09,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:09,097 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-16 12:09:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,126 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-16 12:09:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:09,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 12:09:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,131 INFO L225 Difference]: With dead ends: 242 [2020-10-16 12:09:09,131 INFO L226 Difference]: Without dead ends: 116 [2020-10-16 12:09:09,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-16 12:09:09,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-16 12:09:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-16 12:09:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 284 transitions. [2020-10-16 12:09:09,145 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 284 transitions. Word has length 9 [2020-10-16 12:09:09,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,146 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 284 transitions. [2020-10-16 12:09:09,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:09,146 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 284 transitions. [2020-10-16 12:09:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:09:09,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:09:09,148 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-10-16 12:09:09,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913739911] [2020-10-16 12:09:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913739911] [2020-10-16 12:09:09,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:09:09,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730111562] [2020-10-16 12:09:09,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:09:09,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:09:09,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:09,207 INFO L87 Difference]: Start difference. First operand 116 states and 284 transitions. Second operand 3 states. [2020-10-16 12:09:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,220 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-10-16 12:09:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:09:09,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 12:09:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,223 INFO L225 Difference]: With dead ends: 110 [2020-10-16 12:09:09,223 INFO L226 Difference]: Without dead ends: 110 [2020-10-16 12:09:09,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-16 12:09:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-16 12:09:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-16 12:09:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 265 transitions. [2020-10-16 12:09:09,234 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 265 transitions. Word has length 11 [2020-10-16 12:09:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,234 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 265 transitions. [2020-10-16 12:09:09,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:09:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-10-16 12:09:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:09:09,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:09:09,237 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-10-16 12:09:09,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388550044] [2020-10-16 12:09:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388550044] [2020-10-16 12:09:09,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:09,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768394342] [2020-10-16 12:09:09,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:09:09,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:09:09,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:09,291 INFO L87 Difference]: Start difference. First operand 110 states and 265 transitions. Second operand 3 states. [2020-10-16 12:09:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,304 INFO L93 Difference]: Finished difference Result 104 states and 246 transitions. [2020-10-16 12:09:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:09:09,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:09:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,306 INFO L225 Difference]: With dead ends: 104 [2020-10-16 12:09:09,306 INFO L226 Difference]: Without dead ends: 104 [2020-10-16 12:09:09,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:09:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-16 12:09:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-16 12:09:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-16 12:09:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-10-16 12:09:09,316 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 12 [2020-10-16 12:09:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,317 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-10-16 12:09:09,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:09:09,317 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-10-16 12:09:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:09:09,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:09:09,319 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,320 INFO L82 PathProgramCache]: Analyzing trace with hash -132602240, now seen corresponding path program 1 times [2020-10-16 12:09:09,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004120493] [2020-10-16 12:09:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004120493] [2020-10-16 12:09:09,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:09,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639139673] [2020-10-16 12:09:09,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:09,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:09,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:09,386 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-10-16 12:09:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,413 INFO L93 Difference]: Finished difference Result 158 states and 375 transitions. [2020-10-16 12:09:09,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:09:09,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:09:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,415 INFO L225 Difference]: With dead ends: 158 [2020-10-16 12:09:09,415 INFO L226 Difference]: Without dead ends: 104 [2020-10-16 12:09:09,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-16 12:09:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-16 12:09:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-16 12:09:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 244 transitions. [2020-10-16 12:09:09,425 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 244 transitions. Word has length 13 [2020-10-16 12:09:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,425 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 244 transitions. [2020-10-16 12:09:09,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 244 transitions. [2020-10-16 12:09:09,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:09:09,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:09:09,427 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 2 times [2020-10-16 12:09:09,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532130322] [2020-10-16 12:09:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532130322] [2020-10-16 12:09:09,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:09,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930731684] [2020-10-16 12:09:09,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:09,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:09,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:09,503 INFO L87 Difference]: Start difference. First operand 104 states and 244 transitions. Second operand 4 states. [2020-10-16 12:09:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,536 INFO L93 Difference]: Finished difference Result 127 states and 275 transitions. [2020-10-16 12:09:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:09:09,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 12:09:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,538 INFO L225 Difference]: With dead ends: 127 [2020-10-16 12:09:09,538 INFO L226 Difference]: Without dead ends: 87 [2020-10-16 12:09:09,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-16 12:09:09,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-16 12:09:09,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-16 12:09:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 183 transitions. [2020-10-16 12:09:09,545 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 183 transitions. Word has length 13 [2020-10-16 12:09:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,545 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 183 transitions. [2020-10-16 12:09:09,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 183 transitions. [2020-10-16 12:09:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 12:09:09,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:09:09,547 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-10-16 12:09:09,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176987192] [2020-10-16 12:09:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176987192] [2020-10-16 12:09:09,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:09,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606227926] [2020-10-16 12:09:09,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:09:09,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:09:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,633 INFO L87 Difference]: Start difference. First operand 87 states and 183 transitions. Second operand 5 states. [2020-10-16 12:09:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,700 INFO L93 Difference]: Finished difference Result 90 states and 175 transitions. [2020-10-16 12:09:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:09:09,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 12:09:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,702 INFO L225 Difference]: With dead ends: 90 [2020-10-16 12:09:09,702 INFO L226 Difference]: Without dead ends: 65 [2020-10-16 12:09:09,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:09:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-16 12:09:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-16 12:09:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-16 12:09:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 119 transitions. [2020-10-16 12:09:09,707 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 119 transitions. Word has length 14 [2020-10-16 12:09:09,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,707 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 119 transitions. [2020-10-16 12:09:09,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:09:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 119 transitions. [2020-10-16 12:09:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:09:09,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:09:09,709 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,709 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-10-16 12:09:09,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254643392] [2020-10-16 12:09:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254643392] [2020-10-16 12:09:09,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:09:09,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708589901] [2020-10-16 12:09:09,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:09:09,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:09:09,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:09:09,776 INFO L87 Difference]: Start difference. First operand 65 states and 119 transitions. Second operand 6 states. [2020-10-16 12:09:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,826 INFO L93 Difference]: Finished difference Result 62 states and 111 transitions. [2020-10-16 12:09:09,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:09:09,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 12:09:09,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,827 INFO L225 Difference]: With dead ends: 62 [2020-10-16 12:09:09,828 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 12:09:09,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:09:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 12:09:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 12:09:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 12:09:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-10-16 12:09:09,832 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-10-16 12:09:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,832 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-10-16 12:09:09,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:09:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-10-16 12:09:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:09:09,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:09:09,834 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,834 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-10-16 12:09:09,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103551026] [2020-10-16 12:09:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103551026] [2020-10-16 12:09:09,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:09,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852798807] [2020-10-16 12:09:09,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:09,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:09,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:09,874 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-10-16 12:09:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,895 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-10-16 12:09:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:09,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:09:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,897 INFO L225 Difference]: With dead ends: 63 [2020-10-16 12:09:09,897 INFO L226 Difference]: Without dead ends: 35 [2020-10-16 12:09:09,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-16 12:09:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-16 12:09:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-16 12:09:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-10-16 12:09:09,900 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-10-16 12:09:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:09,900 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-10-16 12:09:09,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-10-16 12:09:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:09:09,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:09,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:09,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:09:09,902 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:09,902 INFO L82 PathProgramCache]: Analyzing trace with hash 361560856, now seen corresponding path program 2 times [2020-10-16 12:09:09,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:09,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798086996] [2020-10-16 12:09:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:09,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798086996] [2020-10-16 12:09:09,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:09,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:09:09,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345517880] [2020-10-16 12:09:09,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:09,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:09,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:09,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:09,974 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-10-16 12:09:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:09,996 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2020-10-16 12:09:09,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:09:09,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:09:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:09,997 INFO L225 Difference]: With dead ends: 48 [2020-10-16 12:09:09,997 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 12:09:09,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 12:09:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 12:09:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 12:09:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 12:09:10,000 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 12:09:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:10,000 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 12:09:10,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:10,001 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 12:09:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:09:10,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:09:10,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:09:10,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:09:10,009 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:09:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:09:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash -550831814, now seen corresponding path program 3 times [2020-10-16 12:09:10,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:09:10,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307487618] [2020-10-16 12:09:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:09:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:09:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:09:10,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307487618] [2020-10-16 12:09:10,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:09:10,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:09:10,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613800753] [2020-10-16 12:09:10,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:09:10,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:09:10,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:09:10,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:09:10,070 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-16 12:09:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:09:10,089 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 12:09:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:09:10,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:09:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:09:10,092 INFO L225 Difference]: With dead ends: 29 [2020-10-16 12:09:10,092 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:09:10,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:09:10,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:09:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:09:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:09:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:09:10,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 12:09:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:09:10,093 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:09:10,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:09:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:09:10,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:09:10,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:09:10,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:09:10 BasicIcfg [2020-10-16 12:09:10,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:09:10,103 INFO L168 Benchmark]: Toolchain (without parser) took 4561.68 ms. Allocated memory was 140.0 MB in the beginning and 248.5 MB in the end (delta: 108.5 MB). Free memory was 101.7 MB in the beginning and 165.0 MB in the end (delta: -63.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,104 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:09:10,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.82 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 157.7 MB in the end (delta: -56.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,112 INFO L168 Benchmark]: Boogie Preprocessor took 32.67 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,112 INFO L168 Benchmark]: RCFGBuilder took 471.27 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 131.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,118 INFO L168 Benchmark]: TraceAbstraction took 3243.74 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 131.1 MB in the beginning and 165.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:09:10,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.82 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 157.7 MB in the end (delta: -56.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.83 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.67 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.27 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 131.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3243.74 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 131.1 MB in the beginning and 165.0 MB in the end (delta: -34.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 664 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 214 SDtfs, 159 SDslu, 247 SDs, 0 SdLazy, 138 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 4725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...