/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:14:35,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:14:35,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:14:35,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:14:35,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:14:35,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:14:35,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:14:35,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:14:35,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:14:35,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:14:35,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:14:35,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:14:35,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:14:35,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:14:35,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:14:35,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:14:35,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:14:35,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:14:35,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:14:35,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:14:35,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:14:35,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:14:35,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:14:35,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:14:35,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 17:14:35,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:14:35,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:14:35,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:14:35,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:14:35,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:14:35,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:14:35,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:14:35,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:14:35,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:14:35,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:14:35,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:14:35,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:14:36,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:14:36,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:14:36,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:14:36,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:14:36,015 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:14:36,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:14:36,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:14:36,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:14:36,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:14:36,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:14:36,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:14:36,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:14:36,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:14:36,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:14:36,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:14:36,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:14:36,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:14:36,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:14:36,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:14:36,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:14:36,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:14:36,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:14:36,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:14:36,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:14:36,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:14:36,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:14:36,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:14:36,020 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:14:36,020 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:14:36,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:14:36,021 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:14:36,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:14:36,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:14:36,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:14:36,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:14:36,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:14:36,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-09 17:14:36,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28766311/48ae19ea3cc14da59309e22e1e929f52/FLAGa281ee69b [2020-11-09 17:14:37,273 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:14:37,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-09 17:14:37,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28766311/48ae19ea3cc14da59309e22e1e929f52/FLAGa281ee69b [2020-11-09 17:14:37,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c28766311/48ae19ea3cc14da59309e22e1e929f52 [2020-11-09 17:14:37,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:14:37,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:14:37,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:14:37,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:14:37,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:14:37,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:37" (1/1) ... [2020-11-09 17:14:37,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c28bd8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:37, skipping insertion in model container [2020-11-09 17:14:37,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:37" (1/1) ... [2020-11-09 17:14:37,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:14:37,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:14:37,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:14:37,944 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:14:38,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:14:38,129 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:14:38,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38 WrapperNode [2020-11-09 17:14:38,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:14:38,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:14:38,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:14:38,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:14:38,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:14:38,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:14:38,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:14:38,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:14:38,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... [2020-11-09 17:14:38,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:14:38,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:14:38,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:14:38,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:14:38,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:14:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:14:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:14:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:14:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:14:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:14:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:14:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:14:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:14:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:14:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:14:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:14:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:14:38,297 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:14:38,964 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:14:38,964 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:14:38,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:38 BoogieIcfgContainer [2020-11-09 17:14:38,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:14:38,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:14:38,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:14:38,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:14:38,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:14:37" (1/3) ... [2020-11-09 17:14:38,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cdb394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:38, skipping insertion in model container [2020-11-09 17:14:38,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:38" (2/3) ... [2020-11-09 17:14:38,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cdb394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:38, skipping insertion in model container [2020-11-09 17:14:38,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:38" (3/3) ... [2020-11-09 17:14:38,980 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2020-11-09 17:14:38,999 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:14:39,000 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:14:39,005 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:14:39,006 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:14:39,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,054 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,059 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,069 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,070 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,079 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,080 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,081 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:14:39,084 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:14:39,099 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 17:14:39,139 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:14:39,139 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:14:39,140 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:14:39,140 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:14:39,140 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:14:39,141 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:14:39,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:14:39,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:14:39,158 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:14:39,159 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:14:39,163 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 17:14:39,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 17:14:39,232 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 17:14:39,233 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:14:39,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 17:14:39,243 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 17:14:40,862 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 17:14:41,869 WARN L194 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:14:42,180 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:14:42,315 INFO L131 LiptonReduction]: Checked pairs total: 1418 [2020-11-09 17:14:42,315 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-09 17:14:42,322 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 17:14:42,335 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 17:14:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 17:14:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 17:14:42,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:42,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 17:14:42,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:42,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:42,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-11-09 17:14:42,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:42,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945348524] [2020-11-09 17:14:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:42,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945348524] [2020-11-09 17:14:42,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:42,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:14:42,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [517706456] [2020-11-09 17:14:42,556 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:42,560 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:42,588 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 17:14:42,588 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:42,595 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:14:42,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:14:42,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:42,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:14:42,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:14:42,617 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 17:14:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:42,636 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 17:14:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:14:42,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 17:14:42,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:42,650 INFO L225 Difference]: With dead ends: 90 [2020-11-09 17:14:42,650 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 17:14:42,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:14:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 17:14:42,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 17:14:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 17:14:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 17:14:42,714 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 17:14:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:42,715 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 17:14:42,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:14:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 17:14:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 17:14:42,718 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:42,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:14:42,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:14:42,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:42,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:42,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-11-09 17:14:42,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:42,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656374572] [2020-11-09 17:14:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:42,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656374572] [2020-11-09 17:14:42,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:42,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:14:42,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [474214388] [2020-11-09 17:14:42,880 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:42,881 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:42,884 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 17:14:42,884 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:42,885 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:14:42,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:14:42,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:42,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:14:42,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:14:42,889 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-11-09 17:14:42,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:42,936 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-11-09 17:14:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:14:42,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 17:14:42,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:42,940 INFO L225 Difference]: With dead ends: 63 [2020-11-09 17:14:42,940 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 17:14:42,941 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 [2020-11-09 17:14:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 17:14:42,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 17:14:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 17:14:42,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-11-09 17:14:42,953 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-11-09 17:14:42,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:42,953 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-11-09 17:14:42,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:14:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-11-09 17:14:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:14:42,955 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:42,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:14:42,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:14:42,955 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:42,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:42,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-11-09 17:14:42,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:42,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183488898] [2020-11-09 17:14:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:43,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183488898] [2020-11-09 17:14:43,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:43,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:14:43,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [271732464] [2020-11-09 17:14:43,067 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:43,068 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:43,071 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 17:14:43,071 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:43,111 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [660#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:14:43,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:14:43,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:43,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:14:43,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:14:43,113 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 6 states. [2020-11-09 17:14:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:43,151 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-11-09 17:14:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:14:43,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-09 17:14:43,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:43,153 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:14:43,153 INFO L226 Difference]: Without dead ends: 29 [2020-11-09 17:14:43,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:14:43,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-09 17:14:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-09 17:14:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-09 17:14:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-11-09 17:14:43,157 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-11-09 17:14:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:43,157 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-11-09 17:14:43,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:14:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-11-09 17:14:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:14:43,158 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:43,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:14:43,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:14:43,159 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-11-09 17:14:43,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:43,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333282082] [2020-11-09 17:14:43,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:43,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333282082] [2020-11-09 17:14:43,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:43,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:14:43,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [339943850] [2020-11-09 17:14:43,254 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:43,255 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:43,257 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-11-09 17:14:43,258 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:43,283 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:14:43,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:14:43,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:43,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:14:43,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:14:43,285 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-11-09 17:14:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:43,313 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-11-09 17:14:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:14:43,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 17:14:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:43,314 INFO L225 Difference]: With dead ends: 37 [2020-11-09 17:14:43,314 INFO L226 Difference]: Without dead ends: 17 [2020-11-09 17:14:43,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:14:43,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-09 17:14:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-09 17:14:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-09 17:14:43,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-11-09 17:14:43,318 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-11-09 17:14:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:43,318 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-11-09 17:14:43,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:14:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-09 17:14:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:14:43,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:43,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:14:43,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:14:43,320 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:43,320 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-11-09 17:14:43,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:43,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595596338] [2020-11-09 17:14:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:43,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:43,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595596338] [2020-11-09 17:14:43,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:43,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 17:14:43,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1305159820] [2020-11-09 17:14:43,454 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:43,456 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:43,458 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 17:14:43,458 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:43,458 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:14:43,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 17:14:43,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:43,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 17:14:43,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-09 17:14:43,460 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 9 states. [2020-11-09 17:14:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:43,525 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-09 17:14:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 17:14:43,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-11-09 17:14:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:43,526 INFO L225 Difference]: With dead ends: 21 [2020-11-09 17:14:43,526 INFO L226 Difference]: Without dead ends: 15 [2020-11-09 17:14:43,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-09 17:14:43,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-09 17:14:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-09 17:14:43,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-09 17:14:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-09 17:14:43,529 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-11-09 17:14:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:43,529 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-11-09 17:14:43,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 17:14:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-09 17:14:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:14:43,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:14:43,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:14:43,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:14:43,531 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:14:43,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:14:43,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1443525937, now seen corresponding path program 3 times [2020-11-09 17:14:43,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:14:43,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135970697] [2020-11-09 17:14:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:14:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:14:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:14:43,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135970697] [2020-11-09 17:14:43,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:14:43,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 17:14:43,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [369954646] [2020-11-09 17:14:43,634 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:14:43,636 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:14:43,637 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-11-09 17:14:43,637 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:14:43,657 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [910#(and (= ~__unbuffered_p0_EAX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-11-09 17:14:43,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:14:43,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:14:43,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:14:43,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:14:43,658 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2020-11-09 17:14:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:14:43,710 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-09 17:14:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 17:14:43,710 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-09 17:14:43,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:14:43,710 INFO L225 Difference]: With dead ends: 14 [2020-11-09 17:14:43,711 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:14:43,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-09 17:14:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:14:43,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:14:43,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:14:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:14:43,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-09 17:14:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:14:43,713 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:14:43,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:14:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:14:43,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:14:43,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:14:43,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:14:43 BasicIcfg [2020-11-09 17:14:43,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:14:43,719 INFO L168 Benchmark]: Toolchain (without parser) took 6248.04 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 134.0 MB in the beginning and 75.4 MB in the end (delta: 58.6 MB). Peak memory consumption was 96.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,720 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory was 130.8 MB in the beginning and 130.7 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:14:43,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.03 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 140.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.34 ms. Allocated memory is still 160.4 MB. Free memory was 140.4 MB in the beginning and 138.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,722 INFO L168 Benchmark]: Boogie Preprocessor took 41.25 ms. Allocated memory is still 160.4 MB. Free memory was 138.3 MB in the beginning and 137.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,723 INFO L168 Benchmark]: RCFGBuilder took 741.69 ms. Allocated memory is still 160.4 MB. Free memory was 137.3 MB in the beginning and 116.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,724 INFO L168 Benchmark]: TraceAbstraction took 4747.28 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 116.3 MB in the beginning and 75.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 78.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:14:43,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory was 130.8 MB in the beginning and 130.7 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 654.03 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 140.4 MB in the end (delta: -7.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.34 ms. Allocated memory is still 160.4 MB. Free memory was 140.4 MB in the beginning and 138.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.25 ms. Allocated memory is still 160.4 MB. Free memory was 138.3 MB in the beginning and 137.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 741.69 ms. Allocated memory is still 160.4 MB. Free memory was 137.3 MB in the beginning and 116.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4747.28 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 116.3 MB in the beginning and 75.4 MB in the end (delta: 40.9 MB). Peak memory consumption was 78.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 434 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.1s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 76 SDtfs, 55 SDslu, 167 SDs, 0 SdLazy, 123 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2434 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...