/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:59:26,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:59:26,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:59:26,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:59:26,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:59:26,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:59:26,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:59:26,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:59:26,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:59:26,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:59:26,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:59:26,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:59:26,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:59:26,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:59:26,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:59:26,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:59:26,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:59:26,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:59:26,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:59:26,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:59:26,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:59:26,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:59:26,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:59:26,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:59:26,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 21:59:26,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 21:59:26,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 21:59:26,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 21:59:26,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 21:59:26,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 21:59:26,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:59:26,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:59:26,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:59:26,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:59:26,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:59:26,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:59:26,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:59:26,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:59:26,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:59:26,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:59:26,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:59:26,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:59:26,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:59:26,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:59:26,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:59:26,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:59:26,959 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:59:26,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:59:26,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:59:26,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:59:26,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:59:26,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:59:26,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:59:26,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:59:26,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:59:26,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:59:26,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:59:26,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:59:26,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:59:26,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:59:26,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:59:26,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:59:26,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:59:26,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:59:26,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:59:26,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:59:26,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:59:26,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:59:26,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:59:26,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:59:26,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:59:26,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:59:27,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:59:27,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:59:27,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:59:27,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:59:27,281 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:59:27,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-21 21:59:27,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ea466b6/4687e3d92e6b45daada4d5c61ae34478/FLAG506a07467 [2020-10-21 21:59:27,914 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:59:27,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2020-10-21 21:59:27,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ea466b6/4687e3d92e6b45daada4d5c61ae34478/FLAG506a07467 [2020-10-21 21:59:28,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6ea466b6/4687e3d92e6b45daada4d5c61ae34478 [2020-10-21 21:59:28,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:59:28,232 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:59:28,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:28,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:59:28,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:59:28,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff3db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28, skipping insertion in model container [2020-10-21 21:59:28,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:59:28,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:59:28,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:28,808 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:59:28,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:59:28,948 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:59:28,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28 WrapperNode [2020-10-21 21:59:28,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:59:28,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:28,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:59:28,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:59:28,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:28,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:59:29,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:59:29,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:59:29,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:59:29,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (1/1) ... [2020-10-21 21:59:29,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:59:29,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:59:29,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:59:29,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:59:29,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (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 [2020-10-21 21:59:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:59:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 21:59:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:59:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:59:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 21:59:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 21:59:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 21:59:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 21:59:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 21:59:29,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 21:59:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:59:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 21:59:29,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:59:29,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:59:29,124 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:59:29,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:59:29,531 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 21:59:29,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:29 BoogieIcfgContainer [2020-10-21 21:59:29,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:59:29,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:59:29,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:59:29,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:59:29,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:59:28" (1/3) ... [2020-10-21 21:59:29,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62da915d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:29, skipping insertion in model container [2020-10-21 21:59:29,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:59:28" (2/3) ... [2020-10-21 21:59:29,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62da915d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:59:29, skipping insertion in model container [2020-10-21 21:59:29,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:59:29" (3/3) ... [2020-10-21 21:59:29,544 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2020-10-21 21:59:29,557 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:59:29,558 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:59:29,567 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 21:59:29,569 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:59:29,599 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,600 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,600 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,601 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,602 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,604 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,610 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,611 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,611 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:59:29,630 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 21:59:29,642 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 21:59:29,661 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:59:29,661 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:59:29,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:59:29,661 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:59:29,661 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:59:29,662 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:59:29,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:59:29,662 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:59:29,676 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:59:29,679 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:29,682 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:29,684 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-21 21:59:29,735 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-21 21:59:29,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 21:59:29,743 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 21:59:29,749 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 21:59:31,642 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 21:59:31,741 INFO L131 LiptonReduction]: Checked pairs total: 3163 [2020-10-21 21:59:31,742 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-10-21 21:59:31,749 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 21:59:31,780 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 21:59:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 21:59:31,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:59:31,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:31,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:31,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:31,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 2115134997, now seen corresponding path program 1 times [2020-10-21 21:59:31,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:31,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061555524] [2020-10-21 21:59:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061555524] [2020-10-21 21:59:32,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:32,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200239369] [2020-10-21 21:59:32,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 21:59:32,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 21:59:32,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 21:59:32,094 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 21:59:32,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,146 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 21:59:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 21:59:32,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 21:59:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,166 INFO L225 Difference]: With dead ends: 362 [2020-10-21 21:59:32,166 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 21:59:32,168 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 [2020-10-21 21:59:32,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 21:59:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 21:59:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 21:59:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 21:59:32,253 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 21:59:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,254 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 21:59:32,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 21:59:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 21:59:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 21:59:32,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:59:32,257 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1144664430, now seen corresponding path program 1 times [2020-10-21 21:59:32,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002467296] [2020-10-21 21:59:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002467296] [2020-10-21 21:59:32,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:59:32,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461124963] [2020-10-21 21:59:32,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:59:32,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:59:32,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:59:32,368 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 21:59:32,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,402 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 21:59:32,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:59:32,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 21:59:32,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,408 INFO L225 Difference]: With dead ends: 217 [2020-10-21 21:59:32,408 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 21:59:32,409 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 [2020-10-21 21:59:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 21:59:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 21:59:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 21:59:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 21:59:32,444 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 21:59:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,445 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 21:59:32,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:59:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 21:59:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:59:32,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:59:32,452 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1523104206, now seen corresponding path program 1 times [2020-10-21 21:59:32,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497325758] [2020-10-21 21:59:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497325758] [2020-10-21 21:59:32,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863213600] [2020-10-21 21:59:32,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:32,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:32,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:32,542 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 21:59:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,574 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 21:59:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:59:32,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 21:59:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,576 INFO L225 Difference]: With dead ends: 136 [2020-10-21 21:59:32,576 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 21:59:32,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 21:59:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 21:59:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 21:59:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 21:59:32,586 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 21:59:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,587 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 21:59:32,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 21:59:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 21:59:32,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:59:32,589 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1616090199, now seen corresponding path program 1 times [2020-10-21 21:59:32,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444475012] [2020-10-21 21:59:32,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444475012] [2020-10-21 21:59:32,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:59:32,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597116446] [2020-10-21 21:59:32,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:32,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:32,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:32,648 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 21:59:32,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,682 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 21:59:32,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:32,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 21:59:32,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,684 INFO L225 Difference]: With dead ends: 109 [2020-10-21 21:59:32,684 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 21:59:32,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:32,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 21:59:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 21:59:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 21:59:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 21:59:32,690 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 21:59:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,690 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 21:59:32,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 21:59:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:32,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:59:32,693 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1930604432, now seen corresponding path program 1 times [2020-10-21 21:59:32,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982589205] [2020-10-21 21:59:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982589205] [2020-10-21 21:59:32,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141959780] [2020-10-21 21:59:32,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:32,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:32,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:32,791 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-21 21:59:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,826 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 21:59:32,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:32,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 21:59:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,828 INFO L225 Difference]: With dead ends: 135 [2020-10-21 21:59:32,828 INFO L226 Difference]: Without dead ends: 85 [2020-10-21 21:59:32,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:32,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-21 21:59:32,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-21 21:59:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-21 21:59:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-10-21 21:59:32,833 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-10-21 21:59:32,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,833 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-10-21 21:59:32,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:32,834 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-10-21 21:59:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:32,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:59:32,835 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,836 INFO L82 PathProgramCache]: Analyzing trace with hash 129745538, now seen corresponding path program 2 times [2020-10-21 21:59:32,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490784012] [2020-10-21 21:59:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490784012] [2020-10-21 21:59:32,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977358302] [2020-10-21 21:59:32,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:59:32,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:59:32,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:59:32,899 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-10-21 21:59:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:32,932 INFO L93 Difference]: Finished difference Result 123 states and 251 transitions. [2020-10-21 21:59:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:59:32,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 21:59:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:32,933 INFO L225 Difference]: With dead ends: 123 [2020-10-21 21:59:32,933 INFO L226 Difference]: Without dead ends: 61 [2020-10-21 21:59:32,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:59:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-21 21:59:32,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-21 21:59:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-21 21:59:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 117 transitions. [2020-10-21 21:59:32,937 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 117 transitions. Word has length 18 [2020-10-21 21:59:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:32,937 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 117 transitions. [2020-10-21 21:59:32,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:59:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 117 transitions. [2020-10-21 21:59:32,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 21:59:32,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:59:32,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:59:32,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:59:32,939 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:59:32,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:59:32,939 INFO L82 PathProgramCache]: Analyzing trace with hash -898209114, now seen corresponding path program 3 times [2020-10-21 21:59:32,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:59:32,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963085641] [2020-10-21 21:59:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:59:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:59:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:59:32,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963085641] [2020-10-21 21:59:32,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:59:32,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:59:32,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820959889] [2020-10-21 21:59:32,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:59:32,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:59:32,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:59:32,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:59:32,985 INFO L87 Difference]: Start difference. First operand 61 states and 117 transitions. Second operand 4 states. [2020-10-21 21:59:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:59:33,001 INFO L93 Difference]: Finished difference Result 60 states and 116 transitions. [2020-10-21 21:59:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 21:59:33,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 21:59:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:59:33,001 INFO L225 Difference]: With dead ends: 60 [2020-10-21 21:59:33,001 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 21:59:33,002 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 [2020-10-21 21:59:33,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 21:59:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 21:59:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 21:59:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 21:59:33,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 21:59:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:59:33,003 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 21:59:33,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:59:33,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 21:59:33,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 21:59:33,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:59:33,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:59:33 BasicIcfg [2020-10-21 21:59:33,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:59:33,010 INFO L168 Benchmark]: Toolchain (without parser) took 4782.72 ms. Allocated memory was 146.8 MB in the beginning and 247.5 MB in the end (delta: 100.7 MB). Free memory was 101.4 MB in the beginning and 136.9 MB in the end (delta: -35.5 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,011 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.99 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.6 MB in the beginning and 157.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,013 INFO L168 Benchmark]: Boogie Preprocessor took 27.22 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,014 INFO L168 Benchmark]: RCFGBuilder took 505.96 ms. Allocated memory is still 203.9 MB. Free memory was 153.9 MB in the beginning and 130.0 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,015 INFO L168 Benchmark]: TraceAbstraction took 3471.90 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 129.0 MB in the beginning and 136.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:59:33,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.99 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.6 MB in the beginning and 157.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 203.9 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.22 ms. Allocated memory is still 203.9 MB. Free memory was 155.8 MB in the beginning and 153.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.96 ms. Allocated memory is still 203.9 MB. Free memory was 153.9 MB in the beginning and 130.0 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3471.90 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 129.0 MB in the beginning and 136.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 952 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 78 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 3163 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 117 SDtfs, 86 SDslu, 155 SDs, 0 SdLazy, 62 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...