/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:39:40,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:39:40,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:39:40,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:39:40,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:39:40,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:39:40,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:39:40,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:39:40,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:39:40,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:39:40,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:39:40,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:39:40,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:39:40,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:39:40,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:39:40,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:39:40,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:39:40,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:39:40,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:39:41,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:39:41,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-21 23:39:41,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:39:41,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:39:41,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:39:41,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:39:41,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:39:41,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:39:41,030 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:39:41,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:39:41,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:39:41,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:39:41,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:39:41,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:39:41,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:39:41,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:39:41,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:39:41,033 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:39:41,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:39:41,034 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:39:41,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:39:41,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:39:41,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:39:41,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:39:41,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:39:41,322 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:39:41,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2021-05-21 23:39:41,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae02caae/3a0159182ffd4021a151a8f118bdd5c9/FLAG03c63e56a [2021-05-21 23:39:41,808 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:39:41,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2021-05-21 23:39:41,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae02caae/3a0159182ffd4021a151a8f118bdd5c9/FLAG03c63e56a [2021-05-21 23:39:41,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae02caae/3a0159182ffd4021a151a8f118bdd5c9 [2021-05-21 23:39:41,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:39:41,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:39:41,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:39:41,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:39:41,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:39:41,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:39:41" (1/1) ... [2021-05-21 23:39:41,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0bfc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:41, skipping insertion in model container [2021-05-21 23:39:41,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:39:41" (1/1) ... [2021-05-21 23:39:41,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:39:41,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:39:41,983 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i[949,962] [2021-05-21 23:39:42,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:39:42,126 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:39:42,134 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i[949,962] [2021-05-21 23:39:42,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:39:42,195 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:39:42,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42 WrapperNode [2021-05-21 23:39:42,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:39:42,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:39:42,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:39:42,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:39:42,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:39:42,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:39:42,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:39:42,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:39:42,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (1/1) ... [2021-05-21 23:39:42,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:39:42,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:39:42,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:39:42,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:39:42,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (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 [2021-05-21 23:39:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:39:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:39:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:39:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:39:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:39:42,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:39:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:39:42,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:39:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:39:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:39:42,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:39:42,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:39:42,308 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:39:42,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:39:42,594 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:39:42,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:39:42 BoogieIcfgContainer [2021-05-21 23:39:42,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:39:42,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:39:42,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:39:42,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:39:42,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:39:41" (1/3) ... [2021-05-21 23:39:42,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb72a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:39:42, skipping insertion in model container [2021-05-21 23:39:42,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:42" (2/3) ... [2021-05-21 23:39:42,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32eb72a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:39:42, skipping insertion in model container [2021-05-21 23:39:42,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:39:42" (3/3) ... [2021-05-21 23:39:42,602 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_rmo.opt.i [2021-05-21 23:39:42,606 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:39:42,606 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:39:42,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:39:42,607 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:39:42,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,630 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,634 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,635 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,635 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,635 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,638 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,639 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:42,644 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:39:42,659 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:39:42,678 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:39:42,678 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:39:42,678 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:39:42,679 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:39:42,679 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:39:42,679 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:39:42,679 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:39:42,679 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:39:42,688 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-05-21 23:39:42,740 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-21 23:39:42,769 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:42,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:42,770 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:42,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1835842458, now seen corresponding path program 1 times [2021-05-21 23:39:42,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:42,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785409505] [2021-05-21 23:39:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:43,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:43,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785409505] [2021-05-21 23:39:43,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785409505] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:43,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:43,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:43,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399139558] [2021-05-21 23:39:43,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:43,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:43,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:43,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:43,105 INFO L87 Difference]: Start difference. First operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:43,272 INFO L93 Difference]: Finished difference Result 1122 states and 2794 transitions. [2021-05-21 23:39:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:39:43,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-05-21 23:39:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:43,288 INFO L225 Difference]: With dead ends: 1122 [2021-05-21 23:39:43,289 INFO L226 Difference]: Without dead ends: 580 [2021-05-21 23:39:43,290 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-05-21 23:39:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2021-05-21 23:39:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 2.412780656303972) internal successors, (1397), 579 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1397 transitions. [2021-05-21 23:39:43,359 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1397 transitions. Word has length 41 [2021-05-21 23:39:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:43,360 INFO L482 AbstractCegarLoop]: Abstraction has 580 states and 1397 transitions. [2021-05-21 23:39:43,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1397 transitions. [2021-05-21 23:39:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-21 23:39:43,362 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:43,362 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:43,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:39:43,363 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:43,365 INFO L82 PathProgramCache]: Analyzing trace with hash 720801784, now seen corresponding path program 1 times [2021-05-21 23:39:43,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:43,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570921562] [2021-05-21 23:39:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:43,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:43,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570921562] [2021-05-21 23:39:43,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570921562] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:43,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:43,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:39:43,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234960603] [2021-05-21 23:39:43,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:39:43,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:43,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:39:43,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:39:43,532 INFO L87 Difference]: Start difference. First operand 580 states and 1397 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:43,647 INFO L93 Difference]: Finished difference Result 448 states and 1024 transitions. [2021-05-21 23:39:43,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:39:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-05-21 23:39:43,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:43,649 INFO L225 Difference]: With dead ends: 448 [2021-05-21 23:39:43,649 INFO L226 Difference]: Without dead ends: 316 [2021-05-21 23:39:43,650 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 103.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:39:43,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-05-21 23:39:43,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-05-21 23:39:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 2.2) internal successors, (693), 315 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 693 transitions. [2021-05-21 23:39:43,657 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 693 transitions. Word has length 45 [2021-05-21 23:39:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:43,658 INFO L482 AbstractCegarLoop]: Abstraction has 316 states and 693 transitions. [2021-05-21 23:39:43,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,658 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 693 transitions. [2021-05-21 23:39:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:39:43,660 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:43,660 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:43,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:39:43,660 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:43,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:43,666 INFO L82 PathProgramCache]: Analyzing trace with hash -753432138, now seen corresponding path program 1 times [2021-05-21 23:39:43,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:43,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683724044] [2021-05-21 23:39:43,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:43,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:43,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:43,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683724044] [2021-05-21 23:39:43,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683724044] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:43,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:43,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:39:43,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661651226] [2021-05-21 23:39:43,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:39:43,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:43,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:39:43,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:39:43,785 INFO L87 Difference]: Start difference. First operand 316 states and 693 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:43,849 INFO L93 Difference]: Finished difference Result 457 states and 1015 transitions. [2021-05-21 23:39:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:39:43,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-21 23:39:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:43,851 INFO L225 Difference]: With dead ends: 457 [2021-05-21 23:39:43,851 INFO L226 Difference]: Without dead ends: 271 [2021-05-21 23:39:43,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-05-21 23:39:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-05-21 23:39:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 2.1222222222222222) internal successors, (573), 270 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 573 transitions. [2021-05-21 23:39:43,858 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 573 transitions. Word has length 49 [2021-05-21 23:39:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:43,859 INFO L482 AbstractCegarLoop]: Abstraction has 271 states and 573 transitions. [2021-05-21 23:39:43,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 573 transitions. [2021-05-21 23:39:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:39:43,860 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:43,861 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:43,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:39:43,862 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:43,863 INFO L82 PathProgramCache]: Analyzing trace with hash -967070400, now seen corresponding path program 2 times [2021-05-21 23:39:43,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:43,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071462160] [2021-05-21 23:39:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:43,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:43,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071462160] [2021-05-21 23:39:43,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071462160] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:43,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:43,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:39:43,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786133642] [2021-05-21 23:39:43,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:39:43,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:43,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:39:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:39:43,955 INFO L87 Difference]: Start difference. First operand 271 states and 573 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:44,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:44,025 INFO L93 Difference]: Finished difference Result 253 states and 531 transitions. [2021-05-21 23:39:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:39:44,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-05-21 23:39:44,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:44,026 INFO L225 Difference]: With dead ends: 253 [2021-05-21 23:39:44,027 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:39:44,027 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:39:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:39:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:39:44,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-05-21 23:39:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:44,027 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:39:44,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:39:44,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:39:44,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:39:44,028 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:39:44,029 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 23:39:44,030 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:39:44,031 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:39:44,031 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:39:44,031 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:39:44,031 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:39:44,031 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:39:44,031 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:39:44,031 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:39:44,035 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 67 transitions, 144 flow [2021-05-21 23:39:44,055 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1244 states have (on average 2.695337620578778) internal successors, (3353), 1245 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:44,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:39:44,061 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:39:44,061 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:39:44,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:39:44 BasicIcfg [2021-05-21 23:39:44,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:39:44,064 INFO L168 Benchmark]: Toolchain (without parser) took 2235.22 ms. Allocated memory is still 329.3 MB. Free memory was 292.2 MB in the beginning and 276.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:44,065 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 329.3 MB. Free memory was 310.0 MB in the beginning and 309.9 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:39:44,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.39 ms. Allocated memory is still 329.3 MB. Free memory was 291.9 MB in the beginning and 292.8 MB in the end (delta: -815.6 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:44,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.26 ms. Allocated memory is still 329.3 MB. Free memory was 292.8 MB in the beginning and 290.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:44,070 INFO L168 Benchmark]: Boogie Preprocessor took 19.98 ms. Allocated memory is still 329.3 MB. Free memory was 290.7 MB in the beginning and 289.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:44,071 INFO L168 Benchmark]: RCFGBuilder took 339.78 ms. Allocated memory is still 329.3 MB. Free memory was 289.6 MB in the beginning and 266.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:44,074 INFO L168 Benchmark]: TraceAbstraction took 1465.93 ms. Allocated memory is still 329.3 MB. Free memory was 265.5 MB in the beginning and 276.0 MB in the end (delta: -10.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:39:44,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 329.3 MB. Free memory was 310.0 MB in the beginning and 309.9 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 365.39 ms. Allocated memory is still 329.3 MB. Free memory was 291.9 MB in the beginning and 292.8 MB in the end (delta: -815.6 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.26 ms. Allocated memory is still 329.3 MB. Free memory was 292.8 MB in the beginning and 290.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.98 ms. Allocated memory is still 329.3 MB. Free memory was 290.7 MB in the beginning and 289.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 339.78 ms. Allocated memory is still 329.3 MB. Free memory was 289.6 MB in the beginning and 266.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1465.93 ms. Allocated memory is still 329.3 MB. Free memory was 265.5 MB in the beginning and 276.0 MB in the end (delta: -10.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1351.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 32.9ms, AutomataDifference: 453.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 293 SDtfs, 361 SDslu, 1022 SDs, 0 SdLazy, 118 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 408.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 73.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.0ms SsaConstructionTime, 131.9ms SatisfiabilityAnalysisTime, 434.1ms InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 5.5ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...