/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:40:04,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:40:04,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:40:04,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:40:04,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 11:40:04,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 11:40:04,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 11:40:04,845 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.epf [2021-08-21 11:40:04,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:40:04,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:40:04,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:40:04,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:40:04,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:40:04,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:40:04,878 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:40:04,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:40:04,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:40:04,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:40:04,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:40:04,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:40:04,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:40:04,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:40:04,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:40:04,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:40:04,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:40:04,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:40:04,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:40:05,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:40:05,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:40:05,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:40:05,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:40:05,166 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:40:05,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-08-21 11:40:05,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63b3711dc/ec8f5e237bb44098959b2b3fdc547145/FLAG793e9645a [2021-08-21 11:40:05,665 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:40:05,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-08-21 11:40:05,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63b3711dc/ec8f5e237bb44098959b2b3fdc547145/FLAG793e9645a [2021-08-21 11:40:05,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63b3711dc/ec8f5e237bb44098959b2b3fdc547145 [2021-08-21 11:40:05,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:40:05,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:40:05,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:40:05,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:40:05,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:40:05,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:40:05" (1/1) ... [2021-08-21 11:40:05,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35910a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:05, skipping insertion in model container [2021-08-21 11:40:05,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:40:05" (1/1) ... [2021-08-21 11:40:05,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:40:05,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:40:05,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-08-21 11:40:06,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:40:06,057 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:40:06,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-08-21 11:40:06,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:40:06,143 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:40:06,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06 WrapperNode [2021-08-21 11:40:06,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:40:06,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:40:06,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:40:06,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:40:06,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:40:06,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:40:06,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:40:06,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:40:06,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:40:06,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:40:06,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:40:06,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:40:06,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (1/1) ... [2021-08-21 11:40:06,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:40:06,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:40:06,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:40:06,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:40:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 11:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 11:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 11:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 11:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 11:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 11:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 11:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 11:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:40:06,309 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:40:06,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:40:06,673 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 11:40:06,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:40:06 BoogieIcfgContainer [2021-08-21 11:40:06,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:40:06,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:40:06,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:40:06,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:40:06,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:40:05" (1/3) ... [2021-08-21 11:40:06,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd5e490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:40:06, skipping insertion in model container [2021-08-21 11:40:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:06" (2/3) ... [2021-08-21 11:40:06,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd5e490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:40:06, skipping insertion in model container [2021-08-21 11:40:06,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:40:06" (3/3) ... [2021-08-21 11:40:06,680 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-08-21 11:40:06,683 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:40:06,683 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:40:06,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 11:40:06,684 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:40:06,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,709 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,709 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:06,733 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 11:40:06,762 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:40:06,768 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:40:06,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 11:40:06,780 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-08-21 11:40:06,902 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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) [2021-08-21 11:40:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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) [2021-08-21 11:40:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-21 11:40:06,939 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:06,940 INFO L512 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, 1] [2021-08-21 11:40:06,940 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:06,943 INFO L82 PathProgramCache]: Analyzing trace with hash -194702042, now seen corresponding path program 1 times [2021-08-21 11:40:06,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:06,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626727663] [2021-08-21 11:40:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:06,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:07,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:07,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626727663] [2021-08-21 11:40:07,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626727663] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:07,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:07,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:40:07,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232226804] [2021-08-21 11:40:07,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:40:07,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:07,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:40:07,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:40:07,372 INFO L87 Difference]: Start difference. First operand has 5560 states, 5559 states have (on average 3.4934340708760567) internal successors, (19420), 5559 states have internal predecessors, (19420), 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 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-08-21 11:40:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:07,659 INFO L93 Difference]: Finished difference Result 6344 states and 21548 transitions. [2021-08-21 11:40:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:40:07,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-08-21 11:40:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:07,724 INFO L225 Difference]: With dead ends: 6344 [2021-08-21 11:40:07,724 INFO L226 Difference]: Without dead ends: 4629 [2021-08-21 11:40:07,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:40:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2021-08-21 11:40:07,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4629. [2021-08-21 11:40:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 4628 states have (on average 3.3854796888504755) internal successors, (15668), 4628 states have internal predecessors, (15668), 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) [2021-08-21 11:40:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 15668 transitions. [2021-08-21 11:40:07,925 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 15668 transitions. Word has length 50 [2021-08-21 11:40:07,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:07,926 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 15668 transitions. [2021-08-21 11:40:07,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-08-21 11:40:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 15668 transitions. [2021-08-21 11:40:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-21 11:40:07,933 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:07,933 INFO L512 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, 1, 1, 1] [2021-08-21 11:40:07,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:40:07,934 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:07,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:07,934 INFO L82 PathProgramCache]: Analyzing trace with hash 17162693, now seen corresponding path program 1 times [2021-08-21 11:40:07,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:07,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790940904] [2021-08-21 11:40:07,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:07,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:08,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:08,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790940904] [2021-08-21 11:40:08,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790940904] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:08,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:08,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:08,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630822708] [2021-08-21 11:40:08,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:08,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:08,083 INFO L87 Difference]: Start difference. First operand 4629 states and 15668 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-08-21 11:40:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:08,291 INFO L93 Difference]: Finished difference Result 5189 states and 17401 transitions. [2021-08-21 11:40:08,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:40:08,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-08-21 11:40:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:08,313 INFO L225 Difference]: With dead ends: 5189 [2021-08-21 11:40:08,313 INFO L226 Difference]: Without dead ends: 4209 [2021-08-21 11:40:08,314 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 169.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 11:40:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-08-21 11:40:08,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4209. [2021-08-21 11:40:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4208 states have (on average 3.3583650190114067) internal successors, (14132), 4208 states have internal predecessors, (14132), 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) [2021-08-21 11:40:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 14132 transitions. [2021-08-21 11:40:08,476 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 14132 transitions. Word has length 52 [2021-08-21 11:40:08,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:08,477 INFO L470 AbstractCegarLoop]: Abstraction has 4209 states and 14132 transitions. [2021-08-21 11:40:08,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-08-21 11:40:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 14132 transitions. [2021-08-21 11:40:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-21 11:40:08,487 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:08,487 INFO L512 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, 1, 1, 1, 1, 1] [2021-08-21 11:40:08,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:40:08,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:08,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:08,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1477642084, now seen corresponding path program 1 times [2021-08-21 11:40:08,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:08,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495284702] [2021-08-21 11:40:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:08,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:08,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:08,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495284702] [2021-08-21 11:40:08,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495284702] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:08,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:08,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:40:08,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832230212] [2021-08-21 11:40:08,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:40:08,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:40:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:40:08,615 INFO L87 Difference]: Start difference. First operand 4209 states and 14132 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-08-21 11:40:08,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:08,774 INFO L93 Difference]: Finished difference Result 4609 states and 15347 transitions. [2021-08-21 11:40:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:40:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-08-21 11:40:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:08,794 INFO L225 Difference]: With dead ends: 4609 [2021-08-21 11:40:08,794 INFO L226 Difference]: Without dead ends: 3909 [2021-08-21 11:40:08,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 125.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:40:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2021-08-21 11:40:08,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3909. [2021-08-21 11:40:08,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3908 states have (on average 3.339815762538383) internal successors, (13052), 3908 states have internal predecessors, (13052), 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) [2021-08-21 11:40:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 13052 transitions. [2021-08-21 11:40:08,961 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 13052 transitions. Word has length 54 [2021-08-21 11:40:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:08,963 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 13052 transitions. [2021-08-21 11:40:08,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-08-21 11:40:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 13052 transitions. [2021-08-21 11:40:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-21 11:40:08,971 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:08,972 INFO L512 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:08,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:40:08,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:08,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:08,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1492246473, now seen corresponding path program 1 times [2021-08-21 11:40:08,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:08,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282910174] [2021-08-21 11:40:08,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:08,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:09,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:09,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282910174] [2021-08-21 11:40:09,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282910174] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:09,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:09,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 11:40:09,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391469292] [2021-08-21 11:40:09,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 11:40:09,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 11:40:09,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:40:09,172 INFO L87 Difference]: Start difference. First operand 3909 states and 13052 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-08-21 11:40:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:09,373 INFO L93 Difference]: Finished difference Result 5379 states and 17888 transitions. [2021-08-21 11:40:09,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:40:09,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 56 [2021-08-21 11:40:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:09,457 INFO L225 Difference]: With dead ends: 5379 [2021-08-21 11:40:09,458 INFO L226 Difference]: Without dead ends: 2639 [2021-08-21 11:40:09,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 187.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:40:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2021-08-21 11:40:09,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2021-08-21 11:40:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2638 states have (on average 3.262699014404852) internal successors, (8607), 2638 states have internal predecessors, (8607), 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) [2021-08-21 11:40:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 8607 transitions. [2021-08-21 11:40:09,513 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 8607 transitions. Word has length 56 [2021-08-21 11:40:09,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:09,514 INFO L470 AbstractCegarLoop]: Abstraction has 2639 states and 8607 transitions. [2021-08-21 11:40:09,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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) [2021-08-21 11:40:09,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 8607 transitions. [2021-08-21 11:40:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 11:40:09,521 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:09,521 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:09,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:40:09,521 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:09,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:09,524 INFO L82 PathProgramCache]: Analyzing trace with hash 55705389, now seen corresponding path program 1 times [2021-08-21 11:40:09,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:09,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224124675] [2021-08-21 11:40:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:09,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:09,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:09,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224124675] [2021-08-21 11:40:09,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224124675] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:09,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:09,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:09,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041119869] [2021-08-21 11:40:09,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:09,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:09,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:09,661 INFO L87 Difference]: Start difference. First operand 2639 states and 8607 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-08-21 11:40:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:09,779 INFO L93 Difference]: Finished difference Result 3879 states and 12617 transitions. [2021-08-21 11:40:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:40:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-08-21 11:40:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:09,786 INFO L225 Difference]: With dead ends: 3879 [2021-08-21 11:40:09,786 INFO L226 Difference]: Without dead ends: 1799 [2021-08-21 11:40:09,786 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 94.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 11:40:09,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-08-21 11:40:09,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2021-08-21 11:40:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1798 states have (on average 3.131813125695217) internal successors, (5631), 1798 states have internal predecessors, (5631), 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) [2021-08-21 11:40:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 5631 transitions. [2021-08-21 11:40:09,851 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 5631 transitions. Word has length 57 [2021-08-21 11:40:09,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:09,851 INFO L470 AbstractCegarLoop]: Abstraction has 1799 states and 5631 transitions. [2021-08-21 11:40:09,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-08-21 11:40:09,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 5631 transitions. [2021-08-21 11:40:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-21 11:40:09,855 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:09,855 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:09,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 11:40:09,855 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:09,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:09,855 INFO L82 PathProgramCache]: Analyzing trace with hash -112755359, now seen corresponding path program 1 times [2021-08-21 11:40:09,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:09,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533648893] [2021-08-21 11:40:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:09,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:09,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:09,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533648893] [2021-08-21 11:40:09,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533648893] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:09,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:09,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:09,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980250157] [2021-08-21 11:40:09,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:09,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:09,934 INFO L87 Difference]: Start difference. First operand 1799 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-08-21 11:40:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:10,037 INFO L93 Difference]: Finished difference Result 1639 states and 5103 transitions. [2021-08-21 11:40:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:40:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-08-21 11:40:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:10,038 INFO L225 Difference]: With dead ends: 1639 [2021-08-21 11:40:10,038 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 11:40:10,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 95.3ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 11:40:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 11:40:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 11:40:10,039 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) [2021-08-21 11:40:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 11:40:10,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-21 11:40:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:10,039 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 11:40:10,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2021-08-21 11:40:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 11:40:10,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 11:40:10,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:40:10,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:40:10,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:40:10,042 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 11:40:10,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 11:40:10,045 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:40:10,045 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:40:10,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:40:10 BasicIcfg [2021-08-21 11:40:10,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:40:10,048 INFO L168 Benchmark]: Toolchain (without parser) took 4357.00 ms. Allocated memory was 127.9 MB in the beginning and 370.1 MB in the end (delta: 242.2 MB). Free memory was 90.6 MB in the beginning and 181.7 MB in the end (delta: -91.2 MB). Peak memory consumption was 152.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,048 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 108.5 MB in the beginning and 108.4 MB in the end (delta: 114.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:40:10,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.25 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 90.4 MB in the beginning and 147.7 MB in the end (delta: -57.4 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 174.1 MB. Free memory was 147.7 MB in the beginning and 145.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,049 INFO L168 Benchmark]: Boogie Preprocessor took 43.56 ms. Allocated memory is still 174.1 MB. Free memory was 145.8 MB in the beginning and 144.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,049 INFO L168 Benchmark]: RCFGBuilder took 431.74 ms. Allocated memory is still 174.1 MB. Free memory was 144.1 MB in the beginning and 120.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,049 INFO L168 Benchmark]: TraceAbstraction took 3370.86 ms. Allocated memory was 174.1 MB in the beginning and 370.1 MB in the end (delta: 196.1 MB). Free memory was 120.1 MB in the beginning and 181.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 136.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:10,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 108.5 MB in the beginning and 108.4 MB in the end (delta: 114.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 453.25 ms. Allocated memory was 127.9 MB in the beginning and 174.1 MB in the end (delta: 46.1 MB). Free memory was 90.4 MB in the beginning and 147.7 MB in the end (delta: -57.4 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.82 ms. Allocated memory is still 174.1 MB. Free memory was 147.7 MB in the beginning and 145.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.56 ms. Allocated memory is still 174.1 MB. Free memory was 145.8 MB in the beginning and 144.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 431.74 ms. Allocated memory is still 174.1 MB. Free memory was 144.1 MB in the beginning and 120.6 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3370.86 ms. Allocated memory was 174.1 MB in the beginning and 370.1 MB in the end (delta: 196.1 MB). Free memory was 120.1 MB in the beginning and 181.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 136.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3283.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 70.6ms, AutomataDifference: 1317.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 134.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 629 SDtfs, 817 SDslu, 1970 SDs, 0 SdLazy, 146 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 138.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 836.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 639.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.5ms SsaConstructionTime, 108.3ms SatisfiabilityAnalysisTime, 802.4ms InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 321 ConstructedInterpolants, 0 QuantifiedInterpolants, 1117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 11:40:10,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...