/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:46:07,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:46:07,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:46:07,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:46:07,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:46:07,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:46:07,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:46:07,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:46:07,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:46:07,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:46:07,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:46:07,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:46:07,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:46:07,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:46:07,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:46:07,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:46:07,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:46:07,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:46:07,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:46:07,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:46:07,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:46:07,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:46:07,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:46:07,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:46:07,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 15:46:07,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 15:46:07,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 15:46:07,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 15:46:07,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 15:46:07,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 15:46:07,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:46:07,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:46:07,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:46:07,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:46:07,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:46:07,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:46:07,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:46:07,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:46:07,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:46:07,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:46:07,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:46:07,967 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 [2020-11-09 15:46:08,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:46:08,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:46:08,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:46:08,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:46:08,042 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:46:08,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:46:08,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:46:08,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:46:08,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:46:08,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:46:08,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:46:08,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:46:08,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:46:08,044 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:46:08,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:46:08,045 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:46:08,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:46:08,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:46:08,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:46:08,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:46:08,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:46:08,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:46:08,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:46:08,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:46:08,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:46:08,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:46:08,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:46:08,048 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:46:08,049 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:46:08,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:46:08,049 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:46:08,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:46:08,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:46:08,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:46:08,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:46:08,534 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:46:08,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-09 15:46:08,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b302c9a1f/da1db7061aa14ebaa01d0f019c1aac96/FLAG08bd4e0af [2020-11-09 15:46:09,538 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:46:09,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-11-09 15:46:09,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b302c9a1f/da1db7061aa14ebaa01d0f019c1aac96/FLAG08bd4e0af [2020-11-09 15:46:09,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b302c9a1f/da1db7061aa14ebaa01d0f019c1aac96 [2020-11-09 15:46:09,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:46:09,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:46:09,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:46:09,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:46:09,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:46:09,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:46:09" (1/1) ... [2020-11-09 15:46:09,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f670646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:09, skipping insertion in model container [2020-11-09 15:46:09,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:46:09" (1/1) ... [2020-11-09 15:46:09,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:46:09,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:46:10,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:46:10,266 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:46:10,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:46:10,420 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:46:10,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10 WrapperNode [2020-11-09 15:46:10,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:46:10,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:46:10,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:46:10,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:46:10,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:46:10,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:46:10,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:46:10,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:46:10,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... [2020-11-09 15:46:10,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:46:10,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:46:10,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:46:10,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:46:10,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:46:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:46:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:46:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:46:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:46:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:46:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:46:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:46:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:46:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:46:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:46:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:46:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:46:10,606 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:46:11,008 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:46:11,008 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:46:11,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:46:11 BoogieIcfgContainer [2020-11-09 15:46:11,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:46:11,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:46:11,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:46:11,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:46:11,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:46:09" (1/3) ... [2020-11-09 15:46:11,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:46:11, skipping insertion in model container [2020-11-09 15:46:11,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:46:10" (2/3) ... [2020-11-09 15:46:11,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:46:11, skipping insertion in model container [2020-11-09 15:46:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:46:11" (3/3) ... [2020-11-09 15:46:11,019 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2020-11-09 15:46:11,035 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:46:11,036 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:46:11,039 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:46:11,040 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:46:11,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,074 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,078 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,078 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,092 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:46:11,097 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:46:11,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-09 15:46:11,134 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:46:11,134 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:46:11,134 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:46:11,134 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:46:11,134 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:46:11,134 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:46:11,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:46:11,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:46:11,147 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:46:11,148 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 15:46:11,151 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-11-09 15:46:11,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-11-09 15:46:11,196 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-11-09 15:46:11,196 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:46:11,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-11-09 15:46:11,203 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-11-09 15:46:13,115 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 15:46:13,276 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 15:46:14,282 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:46:14,625 WARN L194 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:46:14,740 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:46:14,781 INFO L131 LiptonReduction]: Checked pairs total: 1418 [2020-11-09 15:46:14,782 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-09 15:46:14,791 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-11-09 15:46:14,813 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-11-09 15:46:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-11-09 15:46:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-09 15:46:14,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:14,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-09 15:46:14,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:14,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:14,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-11-09 15:46:14,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:14,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029256843] [2020-11-09 15:46:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:15,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029256843] [2020-11-09 15:46:15,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:15,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:46:15,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [337607978] [2020-11-09 15:46:15,103 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:15,107 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:15,125 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-11-09 15:46:15,126 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:15,132 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:46:15,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 15:46:15,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:15,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 15:46:15,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:46:15,157 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-11-09 15:46:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:15,169 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-11-09 15:46:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 15:46:15,171 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-09 15:46:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:15,182 INFO L225 Difference]: With dead ends: 90 [2020-11-09 15:46:15,182 INFO L226 Difference]: Without dead ends: 74 [2020-11-09 15:46:15,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 15:46:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-09 15:46:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-09 15:46:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-09 15:46:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-11-09 15:46:15,245 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-11-09 15:46:15,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:15,246 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-11-09 15:46:15,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 15:46:15,246 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-11-09 15:46:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-09 15:46:15,247 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:15,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:46:15,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:46:15,248 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:15,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:15,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-11-09 15:46:15,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:15,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684283071] [2020-11-09 15:46:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:15,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684283071] [2020-11-09 15:46:15,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:15,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:46:15,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [590337575] [2020-11-09 15:46:15,479 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:15,480 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:15,481 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-11-09 15:46:15,482 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:15,482 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:46:15,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:46:15,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:15,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:46:15,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:46:15,485 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-11-09 15:46:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:15,541 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-11-09 15:46:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:46:15,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-09 15:46:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:15,543 INFO L225 Difference]: With dead ends: 63 [2020-11-09 15:46:15,543 INFO L226 Difference]: Without dead ends: 47 [2020-11-09 15:46:15,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:46:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-09 15:46:15,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-09 15:46:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-09 15:46:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-11-09 15:46:15,552 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-11-09 15:46:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:15,552 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-11-09 15:46:15,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:46:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-11-09 15:46:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:46:15,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:15,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:46:15,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:46:15,554 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:15,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-11-09 15:46:15,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:15,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956549298] [2020-11-09 15:46:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:15,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956549298] [2020-11-09 15:46:15,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:15,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:46:15,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [416070014] [2020-11-09 15:46:15,657 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:15,658 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:15,661 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 15:46:15,661 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:15,706 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [660#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:46:15,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:46:15,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:15,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:46:15,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:46:15,708 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 6 states. [2020-11-09 15:46:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:15,750 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-11-09 15:46:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:46:15,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-09 15:46:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:15,752 INFO L225 Difference]: With dead ends: 36 [2020-11-09 15:46:15,752 INFO L226 Difference]: Without dead ends: 29 [2020-11-09 15:46:15,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:46:15,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-09 15:46:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-09 15:46:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-09 15:46:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-11-09 15:46:15,756 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-11-09 15:46:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:15,757 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-11-09 15:46:15,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:46:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-11-09 15:46:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:46:15,758 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:15,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:46:15,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:46:15,758 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:15,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-11-09 15:46:15,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:15,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785908371] [2020-11-09 15:46:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:15,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785908371] [2020-11-09 15:46:15,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:15,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:46:15,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [216416743] [2020-11-09 15:46:15,878 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:15,879 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:15,882 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-11-09 15:46:15,883 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:15,906 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:46:15,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:46:15,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:15,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:46:15,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:46:15,907 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-11-09 15:46:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:15,941 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-11-09 15:46:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:46:15,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 15:46:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:15,944 INFO L225 Difference]: With dead ends: 37 [2020-11-09 15:46:15,944 INFO L226 Difference]: Without dead ends: 17 [2020-11-09 15:46:15,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:46:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-09 15:46:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-09 15:46:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-09 15:46:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-11-09 15:46:15,948 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-11-09 15:46:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:15,948 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-11-09 15:46:15,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:46:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-09 15:46:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:46:15,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:15,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:46:15,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:46:15,950 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:15,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:15,950 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-11-09 15:46:15,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:15,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196813937] [2020-11-09 15:46:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:16,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196813937] [2020-11-09 15:46:16,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:16,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 15:46:16,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1904441489] [2020-11-09 15:46:16,134 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:16,135 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:16,137 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-11-09 15:46:16,137 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:16,138 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:46:16,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 15:46:16,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:16,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 15:46:16,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-09 15:46:16,143 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 9 states. [2020-11-09 15:46:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:16,257 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-09 15:46:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:46:16,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-11-09 15:46:16,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:16,260 INFO L225 Difference]: With dead ends: 21 [2020-11-09 15:46:16,260 INFO L226 Difference]: Without dead ends: 15 [2020-11-09 15:46:16,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-11-09 15:46:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-09 15:46:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-09 15:46:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-09 15:46:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-09 15:46:16,264 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-11-09 15:46:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:16,264 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-11-09 15:46:16,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 15:46:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-09 15:46:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:46:16,266 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:46:16,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:46:16,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:46:16,267 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:46:16,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:46:16,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1443525937, now seen corresponding path program 3 times [2020-11-09 15:46:16,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:46:16,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66928090] [2020-11-09 15:46:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:46:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:46:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:46:16,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66928090] [2020-11-09 15:46:16,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:46:16,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-09 15:46:16,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [193930998] [2020-11-09 15:46:16,405 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:46:16,406 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:46:16,408 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-11-09 15:46:16,408 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:46:16,431 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [910#(and (= ~__unbuffered_p0_EAX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-11-09 15:46:16,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:46:16,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:46:16,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:46:16,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-09 15:46:16,432 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2020-11-09 15:46:16,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:46:16,528 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-09 15:46:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:46:16,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-09 15:46:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:46:16,529 INFO L225 Difference]: With dead ends: 14 [2020-11-09 15:46:16,529 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:46:16,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-09 15:46:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:46:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:46:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:46:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:46:16,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-09 15:46:16,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:46:16,533 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:46:16,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:46:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:46:16,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:46:16,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:46:16,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:46:16 BasicIcfg [2020-11-09 15:46:16,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:46:16,544 INFO L168 Benchmark]: Toolchain (without parser) took 6754.59 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.4 MB in the beginning and 119.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,545 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:46:16,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.26 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 127.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,551 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 124.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,554 INFO L168 Benchmark]: Boogie Preprocessor took 43.30 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 123.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,556 INFO L168 Benchmark]: RCFGBuilder took 491.38 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 103.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,558 INFO L168 Benchmark]: TraceAbstraction took 5527.18 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.4 MB in the beginning and 119.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:46:16,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 628.26 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 127.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.71 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 124.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.30 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 123.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 491.38 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 103.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5527.18 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.4 MB in the beginning and 119.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 434 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 76 SDtfs, 55 SDslu, 167 SDs, 0 SdLazy, 123 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...