/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:51:41,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:51:41,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:51:41,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:51:41,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:51:41,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:51:41,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:51:41,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:51:41,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:51:41,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:51:41,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:51:41,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:51:41,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:51:41,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:51:41,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:51:41,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:51:41,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:51:41,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:51:41,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:51:41,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:51:41,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:51:41,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:51:41,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:51:41,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:51:42,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 12:51:42,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:51:42,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:51:42,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:51:42,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:51:42,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:51:42,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:51:42,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:51:42,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:51:42,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:51:42,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:51:42,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:51:42,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:51:42,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:51:42,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:51:42,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:51:42,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:51:42,069 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:51:42,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:51:42,070 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:51:42,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:51:42,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:51:42,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:51:42,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:51:42,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:51:42,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:51:42,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:51:42,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:51:42,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:51:42,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:51:42,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:51:42,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:51:42,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:51:42,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:51:42,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:51:42,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:51:42,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:51:42,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:51:42,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:51:42,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:51:42,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:51:42,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:51:42,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:51:42,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:51:42,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:51:42,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:51:42,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:51:42,514 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:51:42,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 12:51:42,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d513fbb9/003a81a57fbe4779b022493ae0e3c0b3/FLAG6df6394d7 [2020-11-09 12:51:43,262 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:51:43,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 12:51:43,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d513fbb9/003a81a57fbe4779b022493ae0e3c0b3/FLAG6df6394d7 [2020-11-09 12:51:43,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d513fbb9/003a81a57fbe4779b022493ae0e3c0b3 [2020-11-09 12:51:43,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:51:43,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:51:43,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:43,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:51:43,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:51:43,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:43" (1/1) ... [2020-11-09 12:51:43,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d78e4ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:43, skipping insertion in model container [2020-11-09 12:51:43,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:51:43" (1/1) ... [2020-11-09 12:51:43,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:51:43,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:51:43,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:43,997 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:51:44,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:51:44,203 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:51:44,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44 WrapperNode [2020-11-09 12:51:44,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:51:44,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:44,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:51:44,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:51:44,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:51:44,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:51:44,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:51:44,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:51:44,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (1/1) ... [2020-11-09 12:51:44,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:51:44,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:51:44,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:51:44,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:51:44,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (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 12:51:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:51:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:51:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:51:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:51:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:51:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:51:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:51:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:51:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:51:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:51:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:51:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:51:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:51:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:51:44,389 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 12:51:44,920 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:51:44,921 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:51:44,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:44 BoogieIcfgContainer [2020-11-09 12:51:44,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:51:44,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:51:44,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:51:44,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:51:44,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:51:43" (1/3) ... [2020-11-09 12:51:44,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57850a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:44, skipping insertion in model container [2020-11-09 12:51:44,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:51:44" (2/3) ... [2020-11-09 12:51:44,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57850a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:51:44, skipping insertion in model container [2020-11-09 12:51:44,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:51:44" (3/3) ... [2020-11-09 12:51:44,933 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-11-09 12:51:44,950 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:51:44,950 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:51:44,954 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:51:44,955 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:51:44,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,993 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,994 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,994 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,995 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,995 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,997 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:44,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,000 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,011 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,012 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,012 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,015 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,015 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,015 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:51:45,018 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:51:45,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:51:45,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:51:45,057 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:51:45,057 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:51:45,057 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:51:45,057 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:51:45,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:51:45,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:51:45,058 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:51:45,071 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:51:45,073 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:51:45,077 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 12:51:45,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 12:51:45,129 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 12:51:45,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:51:45,134 INFO L84 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. [2020-11-09 12:51:45,137 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 12:51:47,953 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 12:51:48,111 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 12:51:48,582 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-11-09 12:51:48,729 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-11-09 12:51:49,756 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 12:51:49,866 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:51:50,116 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 12:51:50,230 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 12:51:50,316 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-09 12:51:50,317 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 12:51:50,324 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-11-09 12:51:50,347 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-11-09 12:51:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-11-09 12:51:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:51:50,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:50,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:50,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:50,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:50,367 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-11-09 12:51:50,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:50,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676085649] [2020-11-09 12:51:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:50,632 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 12:51:50,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676085649] [2020-11-09 12:51:50,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:50,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:51:50,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932109571] [2020-11-09 12:51:50,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:51:50,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:51:50,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:51:50,658 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-11-09 12:51:50,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:50,699 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-11-09 12:51:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:51:50,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 12:51:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:50,716 INFO L225 Difference]: With dead ends: 214 [2020-11-09 12:51:50,717 INFO L226 Difference]: Without dead ends: 166 [2020-11-09 12:51:50,718 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 [2020-11-09 12:51:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-09 12:51:50,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-09 12:51:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-09 12:51:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-11-09 12:51:50,781 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-11-09 12:51:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:50,782 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-11-09 12:51:50,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:51:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-11-09 12:51:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:51:50,784 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:50,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:50,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:51:50,785 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:50,786 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-11-09 12:51:50,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:50,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465587086] [2020-11-09 12:51:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:50,922 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 12:51:50,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465587086] [2020-11-09 12:51:50,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:50,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:50,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569767654] [2020-11-09 12:51:50,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:50,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:50,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:50,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:50,928 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-11-09 12:51:50,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:50,978 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-11-09 12:51:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:50,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 12:51:50,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:50,981 INFO L225 Difference]: With dead ends: 202 [2020-11-09 12:51:50,982 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 12:51:50,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:50,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 12:51:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-09 12:51:50,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-09 12:51:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-11-09 12:51:50,996 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-11-09 12:51:50,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:50,996 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-11-09 12:51:50,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-11-09 12:51:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:51:51,003 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:51,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:51,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:51:51,004 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:51,005 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-11-09 12:51:51,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:51,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455346525] [2020-11-09 12:51:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:51,139 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 12:51:51,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455346525] [2020-11-09 12:51:51,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:51,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:51:51,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039387514] [2020-11-09 12:51:51,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:51,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:51,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:51,142 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-11-09 12:51:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:51,177 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-11-09 12:51:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:51:51,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 12:51:51,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:51,179 INFO L225 Difference]: With dead ends: 148 [2020-11-09 12:51:51,179 INFO L226 Difference]: Without dead ends: 112 [2020-11-09 12:51:51,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:51,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-11-09 12:51:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-11-09 12:51:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-09 12:51:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-11-09 12:51:51,190 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-11-09 12:51:51,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:51,190 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-11-09 12:51:51,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-11-09 12:51:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:51:51,192 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:51,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:51,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:51:51,195 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:51,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:51,196 INFO L82 PathProgramCache]: Analyzing trace with hash 595600524, now seen corresponding path program 1 times [2020-11-09 12:51:51,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:51,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702711928] [2020-11-09 12:51:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:51,317 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 12:51:51,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702711928] [2020-11-09 12:51:51,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:51,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:51,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362120478] [2020-11-09 12:51:51,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:51:51,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:51:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:51:51,320 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-11-09 12:51:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:51,405 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-11-09 12:51:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:51:51,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 12:51:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:51,407 INFO L225 Difference]: With dead ends: 109 [2020-11-09 12:51:51,407 INFO L226 Difference]: Without dead ends: 85 [2020-11-09 12:51:51,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:51:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-09 12:51:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-09 12:51:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-09 12:51:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-11-09 12:51:51,418 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-11-09 12:51:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:51,419 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-11-09 12:51:51,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:51:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-11-09 12:51:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 12:51:51,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:51,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:51,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:51:51,424 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:51,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-11-09 12:51:51,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:51,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597098112] [2020-11-09 12:51:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:51,530 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 12:51:51,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597098112] [2020-11-09 12:51:51,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:51,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:51:51,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226817313] [2020-11-09 12:51:51,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:51:51,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:51,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:51:51,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:51:51,533 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-11-09 12:51:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:51,591 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-11-09 12:51:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:51:51,591 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 12:51:51,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:51,592 INFO L225 Difference]: With dead ends: 80 [2020-11-09 12:51:51,592 INFO L226 Difference]: Without dead ends: 72 [2020-11-09 12:51:51,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:51:51,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-09 12:51:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-09 12:51:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-09 12:51:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-11-09 12:51:51,598 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-11-09 12:51:51,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:51,599 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-11-09 12:51:51,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:51:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-11-09 12:51:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:51:51,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:51,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:51,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:51:51,600 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:51,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:51,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-11-09 12:51:51,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:51,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102859277] [2020-11-09 12:51:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:51,679 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 12:51:51,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102859277] [2020-11-09 12:51:51,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:51,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:51,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051735041] [2020-11-09 12:51:51,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:51,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:51,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:51,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:51,689 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-11-09 12:51:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:51,711 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-11-09 12:51:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:51,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 12:51:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:51,712 INFO L225 Difference]: With dead ends: 85 [2020-11-09 12:51:51,712 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 12:51:51,714 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 12:51:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 12:51:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 12:51:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 12:51:51,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 12:51:51,719 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-11-09 12:51:51,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:51,719 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 12:51:51,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 12:51:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:51:51,724 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:51:51,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:51:51,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:51:51,724 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:51:51,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:51:51,726 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-11-09 12:51:51,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:51:51,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028464075] [2020-11-09 12:51:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:51:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:51:51,790 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 12:51:51,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028464075] [2020-11-09 12:51:51,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:51:51,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:51:51,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626968808] [2020-11-09 12:51:51,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:51:51,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:51:51,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:51:51,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:51:51,795 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-11-09 12:51:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:51:51,812 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-11-09 12:51:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:51:51,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 12:51:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:51:51,813 INFO L225 Difference]: With dead ends: 32 [2020-11-09 12:51:51,813 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:51:51,814 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 12:51:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:51:51,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:51:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:51:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:51:51,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-09 12:51:51,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:51:51,816 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:51:51,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:51:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:51:51,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:51:51,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:51:51,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:51:51 BasicIcfg [2020-11-09 12:51:51,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:51:51,829 INFO L168 Benchmark]: Toolchain (without parser) took 8320.10 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 134.4 MB in the beginning and 75.9 MB in the end (delta: 58.5 MB). Peak memory consumption was 125.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,831 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:51:51,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.39 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 113.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.23 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 111.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,833 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 ms. Allocated memory is still 151.0 MB. Free memory was 111.4 MB in the beginning and 110.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,834 INFO L168 Benchmark]: RCFGBuilder took 632.55 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 110.1 MB in the beginning and 161.0 MB in the end (delta: -50.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,837 INFO L168 Benchmark]: TraceAbstraction took 6896.81 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 160.4 MB in the beginning and 75.9 MB in the end (delta: 84.5 MB). Peak memory consumption was 121.2 MB. Max. memory is 8.0 GB. [2020-11-09 12:51:51,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 691.39 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 113.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.23 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 111.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.29 ms. Allocated memory is still 151.0 MB. Free memory was 111.4 MB in the beginning and 110.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 632.55 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 110.1 MB in the beginning and 161.0 MB in the end (delta: -50.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6896.81 ms. Allocated memory was 181.4 MB in the beginning and 218.1 MB in the end (delta: 36.7 MB). Free memory was 160.4 MB in the beginning and 75.9 MB in the end (delta: 84.5 MB). Peak memory consumption was 121.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1004 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 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: 6.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 124 SDtfs, 127 SDslu, 166 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...