/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:40:01,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:40:01,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:40:01,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:40:01,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:40:01,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:40:01,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:40:01,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:40:01,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:40:01,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:40:01,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:40:01,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:40:01,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:40:01,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:40:01,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:40:01,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:40:01,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:40:01,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:40:01,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:40:01,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:40:01,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:40:01,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:40:01,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:40:01,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:40:01,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:40:01,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:40:01,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:40:01,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:40:01,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:40:01,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-22 00:40:01,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:40:01,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:40:01,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:40:01,994 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-WP.epf [2020-10-22 00:40:02,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:40:02,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:40:02,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:40:02,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:40:02,033 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:40:02,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:40:02,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:40:02,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:40:02,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:40:02,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:40:02,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:40:02,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:40:02,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:40:02,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:40:02,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:40:02,037 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:40:02,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:40:02,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:40:02,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:40:02,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:40:02,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:40:02,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:40:02,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:40:02,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:40:02,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:40:02,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:40:02,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:40:02,039 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:40:02,039 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:40:02,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:40:02,040 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:40:02,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:40:02,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:40:02,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:40:02,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:40:02,327 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:40:02,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-10-22 00:40:02,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664ab9f72/a7e45e45f4164439a8efbdc0408ac04d/FLAG0eee279dd [2020-10-22 00:40:02,900 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:40:02,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.opt.i [2020-10-22 00:40:02,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664ab9f72/a7e45e45f4164439a8efbdc0408ac04d/FLAG0eee279dd [2020-10-22 00:40:03,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664ab9f72/a7e45e45f4164439a8efbdc0408ac04d [2020-10-22 00:40:03,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:40:03,169 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:40:03,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:40:03,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:40:03,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:40:03,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422f0864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03, skipping insertion in model container [2020-10-22 00:40:03,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:40:03,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:40:03,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:40:03,665 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:40:03,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:40:03,796 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:40:03,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03 WrapperNode [2020-10-22 00:40:03,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:40:03,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:40:03,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:40:03,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:40:03,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:40:03,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:40:03,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:40:03,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:40:03,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (1/1) ... [2020-10-22 00:40:03,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:40:03,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:40:03,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:40:03,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:40:03,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (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 [2020-10-22 00:40:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:40:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:40:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:40:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:40:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:40:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:40:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:40:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:40:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:40:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:40:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:40:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:40:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:40:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:40:03,963 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:40:04,339 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:40:04,339 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:40:04,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:40:04 BoogieIcfgContainer [2020-10-22 00:40:04,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:40:04,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:40:04,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:40:04,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:40:04,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:40:03" (1/3) ... [2020-10-22 00:40:04,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:40:04, skipping insertion in model container [2020-10-22 00:40:04,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:40:03" (2/3) ... [2020-10-22 00:40:04,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dda09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:40:04, skipping insertion in model container [2020-10-22 00:40:04,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:40:04" (3/3) ... [2020-10-22 00:40:04,351 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt.i [2020-10-22 00:40:04,362 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:40:04,363 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:40:04,370 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:40:04,371 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:40:04,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,399 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,401 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,403 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,403 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,403 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,408 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,408 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,409 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,416 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,416 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,417 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,417 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,420 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,420 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,420 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,420 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:40:04,423 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:40:04,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:40:04,454 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:40:04,454 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:40:04,454 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:40:04,454 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:40:04,455 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:40:04,455 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:40:04,455 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:40:04,455 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:40:04,467 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:40:04,468 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:40:04,470 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-10-22 00:40:04,472 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-10-22 00:40:04,519 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-10-22 00:40:04,519 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:40:04,524 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 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-22 00:40:04,527 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-10-22 00:40:06,287 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 00:40:06,403 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-10-22 00:40:06,403 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-10-22 00:40:06,410 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-10-22 00:40:06,434 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-22 00:40:06,436 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-22 00:40:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:40:06,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:06,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:06,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-10-22 00:40:06,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:06,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525953412] [2020-10-22 00:40:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:06,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525953412] [2020-10-22 00:40:06,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:06,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:40:06,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1399606418] [2020-10-22 00:40:06,723 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:06,728 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:06,744 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:40:06,744 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:06,750 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:40:06,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:40:06,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:06,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:40:06,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:40:06,770 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-22 00:40:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:06,824 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-10-22 00:40:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:40:06,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:40:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:06,851 INFO L225 Difference]: With dead ends: 214 [2020-10-22 00:40:06,851 INFO L226 Difference]: Without dead ends: 166 [2020-10-22 00:40:06,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:40:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-22 00:40:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-22 00:40:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-22 00:40:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-10-22 00:40:06,924 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-10-22 00:40:06,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:06,925 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-10-22 00:40:06,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:40:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-10-22 00:40:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:40:06,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:06,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:06,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:40:06,928 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:06,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:06,928 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-10-22 00:40:06,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:06,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962278924] [2020-10-22 00:40:06,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:06,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:06,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962278924] [2020-10-22 00:40:06,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:06,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:40:07,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [972111495] [2020-10-22 00:40:07,000 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:07,001 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:07,003 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-10-22 00:40:07,003 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:07,020 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:40:07,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:40:07,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:07,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:40:07,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:40:07,022 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-10-22 00:40:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:07,054 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-10-22 00:40:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:40:07,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:40:07,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:07,057 INFO L225 Difference]: With dead ends: 202 [2020-10-22 00:40:07,057 INFO L226 Difference]: Without dead ends: 130 [2020-10-22 00:40:07,058 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 [2020-10-22 00:40:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-22 00:40:07,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-22 00:40:07,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-22 00:40:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-10-22 00:40:07,073 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-10-22 00:40:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:07,073 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-10-22 00:40:07,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:40:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-10-22 00:40:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:40:07,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:07,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:07,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:40:07,075 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:07,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:07,075 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-10-22 00:40:07,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:07,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110193869] [2020-10-22 00:40:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:07,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110193869] [2020-10-22 00:40:07,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:07,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:40:07,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [149012729] [2020-10-22 00:40:07,161 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:07,162 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:07,164 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-22 00:40:07,165 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:07,196 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:40:07,238 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:40:07,268 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1561#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:40:07,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:40:07,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:07,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:40:07,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:40:07,270 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-10-22 00:40:07,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:07,326 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-10-22 00:40:07,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:40:07,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 00:40:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:07,328 INFO L225 Difference]: With dead ends: 121 [2020-10-22 00:40:07,328 INFO L226 Difference]: Without dead ends: 85 [2020-10-22 00:40:07,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:40:07,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-22 00:40:07,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-22 00:40:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-22 00:40:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-10-22 00:40:07,335 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-10-22 00:40:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:07,336 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-10-22 00:40:07,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:40:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-10-22 00:40:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:40:07,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:07,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:07,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:40:07,338 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:07,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-10-22 00:40:07,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:07,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994561564] [2020-10-22 00:40:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:07,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994561564] [2020-10-22 00:40:07,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:07,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:40:07,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [195157331] [2020-10-22 00:40:07,415 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:07,416 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:07,418 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-22 00:40:07,418 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:07,438 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:40:07,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:40:07,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:07,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:40:07,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:40:07,440 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-10-22 00:40:07,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:07,504 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-10-22 00:40:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:40:07,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-22 00:40:07,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:07,507 INFO L225 Difference]: With dead ends: 80 [2020-10-22 00:40:07,507 INFO L226 Difference]: Without dead ends: 72 [2020-10-22 00:40:07,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:40:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-22 00:40:07,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-22 00:40:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-22 00:40:07,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-10-22 00:40:07,519 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-10-22 00:40:07,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:07,521 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-10-22 00:40:07,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:40:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-10-22 00:40:07,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:40:07,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:07,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:07,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:40:07,525 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:07,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:07,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-10-22 00:40:07,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:07,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052074067] [2020-10-22 00:40:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:07,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052074067] [2020-10-22 00:40:07,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:07,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:40:07,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [830970244] [2020-10-22 00:40:07,625 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:07,627 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:07,632 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 56 transitions. [2020-10-22 00:40:07,632 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:07,810 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:40:07,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:40:07,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:07,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:40:07,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:40:07,811 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-10-22 00:40:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:07,842 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-10-22 00:40:07,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:40:07,842 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-22 00:40:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:07,843 INFO L225 Difference]: With dead ends: 85 [2020-10-22 00:40:07,843 INFO L226 Difference]: Without dead ends: 33 [2020-10-22 00:40:07,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:40:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-22 00:40:07,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-22 00:40:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-22 00:40:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-22 00:40:07,847 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-22 00:40:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:07,848 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-22 00:40:07,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:40:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-22 00:40:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:40:07,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:40:07,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:40:07,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:40:07,852 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:40:07,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:40:07,853 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-10-22 00:40:07,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:40:07,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818503435] [2020-10-22 00:40:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:40:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:40:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:40:07,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818503435] [2020-10-22 00:40:07,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:40:07,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:40:07,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1124966639] [2020-10-22 00:40:07,949 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:40:07,951 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:40:07,955 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-10-22 00:40:07,956 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:40:07,989 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:40:07,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:40:07,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:40:07,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:40:07,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:40:07,991 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-10-22 00:40:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:40:08,009 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-22 00:40:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:40:08,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-22 00:40:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:40:08,009 INFO L225 Difference]: With dead ends: 32 [2020-10-22 00:40:08,010 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:40:08,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:40:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:40:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:40:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:40:08,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:40:08,011 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-22 00:40:08,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:40:08,011 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:40:08,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:40:08,011 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:40:08,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:40:08,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:40:08,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:40:08 BasicIcfg [2020-10-22 00:40:08,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:40:08,020 INFO L168 Benchmark]: Toolchain (without parser) took 4853.75 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.6 MB in the beginning and 95.7 MB in the end (delta: 5.9 MB). Peak memory consumption was 113.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,022 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.75 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 157.4 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,029 INFO L168 Benchmark]: Boogie Preprocessor took 27.34 ms. Allocated memory is still 203.4 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,029 INFO L168 Benchmark]: RCFGBuilder took 462.40 ms. Allocated memory is still 203.4 MB. Free memory was 153.2 MB in the beginning and 129.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,032 INFO L168 Benchmark]: TraceAbstraction took 3673.13 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 129.0 MB in the beginning and 95.7 MB in the end (delta: 33.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:40:08,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.75 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 157.4 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 203.4 MB. Free memory was 157.4 MB in the beginning and 155.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.34 ms. Allocated memory is still 203.4 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.40 ms. Allocated memory is still 203.4 MB. Free memory was 153.2 MB in the beginning and 129.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3673.13 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 129.0 MB in the beginning and 95.7 MB in the end (delta: 33.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 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: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 107 SDtfs, 100 SDslu, 145 SDs, 0 SdLazy, 81 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280 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...