/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 13:48:42,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 13:48:42,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 13:48:42,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 13:48:42,856 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 [2021-08-06 13:48:42,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 13:48:42,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 13:48:42,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-06 13:48:42,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-06 13:48:42,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 13:48:42,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 13:48:42,887 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 13:48:42,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 13:48:42,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 13:48:42,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 13:48:42,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 13:48:42,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:48:42,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 13:48:42,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 13:48:42,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 13:48:42,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 13:48:42,890 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 13:48:42,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 13:48:42,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 13:48:43,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 13:48:43,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 13:48:43,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 13:48:43,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 13:48:43,162 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 13:48:43,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-08-06 13:48:43,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852feeaf3/36a208a1e224445dbb46fbfeb4e11f9a/FLAG4bb0c220d [2021-08-06 13:48:43,592 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 13:48:43,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-08-06 13:48:43,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852feeaf3/36a208a1e224445dbb46fbfeb4e11f9a/FLAG4bb0c220d [2021-08-06 13:48:43,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/852feeaf3/36a208a1e224445dbb46fbfeb4e11f9a [2021-08-06 13:48:43,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 13:48:43,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 13:48:43,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 13:48:43,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 13:48:43,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 13:48:43,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:48:43" (1/1) ... [2021-08-06 13:48:43,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620cb3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:43, skipping insertion in model container [2021-08-06 13:48:43,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 01:48:43" (1/1) ... [2021-08-06 13:48:43,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 13:48:44,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 13:48:44,091 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/safe011_tso.oepc.i[950,963] [2021-08-06 13:48:44,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:48:44,237 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 13:48:44,247 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/safe011_tso.oepc.i[950,963] [2021-08-06 13:48:44,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 13:48:44,315 INFO L208 MainTranslator]: Completed translation [2021-08-06 13:48:44,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44 WrapperNode [2021-08-06 13:48:44,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 13:48:44,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 13:48:44,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 13:48:44,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 13:48:44,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 13:48:44,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 13:48:44,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 13:48:44,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 13:48:44,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 13:48:44,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 13:48:44,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 13:48:44,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 13:48:44,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (1/1) ... [2021-08-06 13:48:44,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 13:48:44,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 13:48:44,434 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) [2021-08-06 13:48:44,468 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 [2021-08-06 13:48:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 13:48:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 13:48:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 13:48:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 13:48:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 13:48:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 13:48:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 13:48:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 13:48:44,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 13:48:44,486 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 13:48:44,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 13:48:44,808 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 13:48:44,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:48:44 BoogieIcfgContainer [2021-08-06 13:48:44,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 13:48:44,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 13:48:44,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 13:48:44,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 13:48:44,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 01:48:43" (1/3) ... [2021-08-06 13:48:44,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f97d812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:48:44, skipping insertion in model container [2021-08-06 13:48:44,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 01:48:44" (2/3) ... [2021-08-06 13:48:44,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f97d812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 01:48:44, skipping insertion in model container [2021-08-06 13:48:44,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 01:48:44" (3/3) ... [2021-08-06 13:48:44,814 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-08-06 13:48:44,818 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 13:48:44,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 13:48:44,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 13:48:44,818 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 13:48:44,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,850 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,852 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 13:48:44,853 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 13:48:44,882 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 13:48:44,886 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 [2021-08-06 13:48:44,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-06 13:48:44,899 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-08-06 13:48:45,041 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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) [2021-08-06 13:48:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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) [2021-08-06 13:48:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-06 13:48:45,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:45,083 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] [2021-08-06 13:48:45,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:45,088 INFO L82 PathProgramCache]: Analyzing trace with hash -222012670, now seen corresponding path program 1 times [2021-08-06 13:48:45,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:45,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700302758] [2021-08-06 13:48:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:45,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:45,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:45,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700302758] [2021-08-06 13:48:45,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700302758] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:45,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:45,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:48:45,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903048278] [2021-08-06 13:48:45,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:48:45,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:48:45,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:48:45,616 INFO L87 Difference]: Start difference. First operand has 5558 states, 5557 states have (on average 3.4943314738168074) internal successors, (19418), 5557 states have internal predecessors, (19418), 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 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-08-06 13:48:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:46,086 INFO L93 Difference]: Finished difference Result 9686 states and 32746 transitions. [2021-08-06 13:48:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-06 13:48:46,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-08-06 13:48:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:46,129 INFO L225 Difference]: With dead ends: 9686 [2021-08-06 13:48:46,130 INFO L226 Difference]: Without dead ends: 6131 [2021-08-06 13:48:46,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 299.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 13:48:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2021-08-06 13:48:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 5075. [2021-08-06 13:48:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5075 states, 5074 states have (on average 3.3066614111154906) internal successors, (16778), 5074 states have internal predecessors, (16778), 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) [2021-08-06 13:48:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5075 states to 5075 states and 16778 transitions. [2021-08-06 13:48:46,380 INFO L78 Accepts]: Start accepts. Automaton has 5075 states and 16778 transitions. Word has length 48 [2021-08-06 13:48:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:46,381 INFO L470 AbstractCegarLoop]: Abstraction has 5075 states and 16778 transitions. [2021-08-06 13:48:46,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-08-06 13:48:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5075 states and 16778 transitions. [2021-08-06 13:48:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-06 13:48:46,394 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:46,394 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] [2021-08-06 13:48:46,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 13:48:46,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:46,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1843951869, now seen corresponding path program 1 times [2021-08-06 13:48:46,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:46,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858297071] [2021-08-06 13:48:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:46,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:46,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:46,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858297071] [2021-08-06 13:48:46,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858297071] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:46,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:46,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:48:46,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238246636] [2021-08-06 13:48:46,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:48:46,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:48:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:48:46,553 INFO L87 Difference]: Start difference. First operand 5075 states and 16778 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2021-08-06 13:48:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:46,765 INFO L93 Difference]: Finished difference Result 6033 states and 19578 transitions. [2021-08-06 13:48:46,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:48:46,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2021-08-06 13:48:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:46,778 INFO L225 Difference]: With dead ends: 6033 [2021-08-06 13:48:46,778 INFO L226 Difference]: Without dead ends: 2645 [2021-08-06 13:48:46,778 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-06 13:48:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-08-06 13:48:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2021-08-06 13:48:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 3.105521936459909) internal successors, (8211), 2644 states have internal predecessors, (8211), 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) [2021-08-06 13:48:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 8211 transitions. [2021-08-06 13:48:46,836 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 8211 transitions. Word has length 50 [2021-08-06 13:48:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:46,837 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 8211 transitions. [2021-08-06 13:48:46,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2021-08-06 13:48:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 8211 transitions. [2021-08-06 13:48:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-06 13:48:46,843 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:46,843 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] [2021-08-06 13:48:46,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 13:48:46,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:46,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1601565888, now seen corresponding path program 1 times [2021-08-06 13:48:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:46,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248337094] [2021-08-06 13:48:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:46,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:46,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:46,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248337094] [2021-08-06 13:48:46,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248337094] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:46,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:46,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:48:46,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896412831] [2021-08-06 13:48:46,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:48:46,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:46,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:48:46,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:48:46,983 INFO L87 Difference]: Start difference. First operand 2645 states and 8211 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-08-06 13:48:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:47,100 INFO L93 Difference]: Finished difference Result 2965 states and 9167 transitions. [2021-08-06 13:48:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:48:47,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-08-06 13:48:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:47,111 INFO L225 Difference]: With dead ends: 2965 [2021-08-06 13:48:47,111 INFO L226 Difference]: Without dead ends: 2405 [2021-08-06 13:48:47,111 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 92.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:48:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2021-08-06 13:48:47,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2405. [2021-08-06 13:48:47,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 3.074459234608985) internal successors, (7391), 2404 states have internal predecessors, (7391), 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) [2021-08-06 13:48:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 7391 transitions. [2021-08-06 13:48:47,158 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 7391 transitions. Word has length 53 [2021-08-06 13:48:47,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:47,158 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 7391 transitions. [2021-08-06 13:48:47,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2021-08-06 13:48:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 7391 transitions. [2021-08-06 13:48:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-06 13:48:47,163 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:47,163 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] [2021-08-06 13:48:47,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 13:48:47,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:47,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:47,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1298124613, now seen corresponding path program 1 times [2021-08-06 13:48:47,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:47,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131457996] [2021-08-06 13:48:47,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:47,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:47,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:47,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131457996] [2021-08-06 13:48:47,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131457996] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:47,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:47,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:48:47,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483305704] [2021-08-06 13:48:47,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:48:47,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:48:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:48:47,253 INFO L87 Difference]: Start difference. First operand 2405 states and 7391 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-08-06 13:48:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:47,349 INFO L93 Difference]: Finished difference Result 2882 states and 8749 transitions. [2021-08-06 13:48:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 13:48:47,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-08-06 13:48:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:47,359 INFO L225 Difference]: With dead ends: 2882 [2021-08-06 13:48:47,359 INFO L226 Difference]: Without dead ends: 2186 [2021-08-06 13:48:47,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 13:48:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2021-08-06 13:48:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 2186. [2021-08-06 13:48:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 3.0187643020594965) internal successors, (6596), 2185 states have internal predecessors, (6596), 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) [2021-08-06 13:48:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 6596 transitions. [2021-08-06 13:48:47,409 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 6596 transitions. Word has length 55 [2021-08-06 13:48:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:47,410 INFO L470 AbstractCegarLoop]: Abstraction has 2186 states and 6596 transitions. [2021-08-06 13:48:47,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-08-06 13:48:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 6596 transitions. [2021-08-06 13:48:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-06 13:48:47,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:47,415 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] [2021-08-06 13:48:47,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 13:48:47,416 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:47,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:47,420 INFO L82 PathProgramCache]: Analyzing trace with hash -628186020, now seen corresponding path program 1 times [2021-08-06 13:48:47,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:47,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093205787] [2021-08-06 13:48:47,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:47,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:47,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:47,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093205787] [2021-08-06 13:48:47,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093205787] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:47,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:47,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 13:48:47,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255335268] [2021-08-06 13:48:47,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 13:48:47,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 13:48:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 13:48:47,540 INFO L87 Difference]: Start difference. First operand 2186 states and 6596 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-08-06 13:48:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:47,644 INFO L93 Difference]: Finished difference Result 2123 states and 6230 transitions. [2021-08-06 13:48:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 13:48:47,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 [2021-08-06 13:48:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:47,651 INFO L225 Difference]: With dead ends: 2123 [2021-08-06 13:48:47,651 INFO L226 Difference]: Without dead ends: 1571 [2021-08-06 13:48:47,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 78.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:48:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2021-08-06 13:48:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2021-08-06 13:48:47,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1570 states have (on average 2.875796178343949) internal successors, (4515), 1570 states have internal predecessors, (4515), 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) [2021-08-06 13:48:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 4515 transitions. [2021-08-06 13:48:47,678 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 4515 transitions. Word has length 56 [2021-08-06 13:48:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:47,678 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 4515 transitions. [2021-08-06 13:48:47,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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) [2021-08-06 13:48:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 4515 transitions. [2021-08-06 13:48:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-06 13:48:47,681 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:47,681 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] [2021-08-06 13:48:47,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 13:48:47,681 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:47,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:47,682 INFO L82 PathProgramCache]: Analyzing trace with hash -387576593, now seen corresponding path program 1 times [2021-08-06 13:48:47,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:47,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30744011] [2021-08-06 13:48:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:47,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:47,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:47,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30744011] [2021-08-06 13:48:47,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30744011] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:47,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:47,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 13:48:47,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283552344] [2021-08-06 13:48:47,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 13:48:47,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:47,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 13:48:47,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 13:48:47,746 INFO L87 Difference]: Start difference. First operand 1571 states and 4515 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2021-08-06 13:48:47,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:47,800 INFO L93 Difference]: Finished difference Result 2356 states and 6742 transitions. [2021-08-06 13:48:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-06 13:48:47,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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 [2021-08-06 13:48:47,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:47,812 INFO L225 Difference]: With dead ends: 2356 [2021-08-06 13:48:47,812 INFO L226 Difference]: Without dead ends: 1668 [2021-08-06 13:48:47,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-06 13:48:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2021-08-06 13:48:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1506. [2021-08-06 13:48:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 2.823920265780731) internal successors, (4250), 1505 states have internal predecessors, (4250), 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) [2021-08-06 13:48:47,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 4250 transitions. [2021-08-06 13:48:47,841 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 4250 transitions. Word has length 58 [2021-08-06 13:48:47,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:47,841 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 4250 transitions. [2021-08-06 13:48:47,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2021-08-06 13:48:47,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 4250 transitions. [2021-08-06 13:48:47,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-06 13:48:47,843 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 13:48:47,843 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] [2021-08-06 13:48:47,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 13:48:47,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-06 13:48:47,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 13:48:47,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1328953179, now seen corresponding path program 2 times [2021-08-06 13:48:47,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 13:48:47,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458175486] [2021-08-06 13:48:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 13:48:47,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 13:48:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 13:48:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 13:48:47,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 13:48:47,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458175486] [2021-08-06 13:48:47,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458175486] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 13:48:47,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 13:48:47,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 13:48:47,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481340825] [2021-08-06 13:48:47,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 13:48:47,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 13:48:47,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 13:48:47,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-06 13:48:47,975 INFO L87 Difference]: Start difference. First operand 1506 states and 4250 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-08-06 13:48:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 13:48:48,057 INFO L93 Difference]: Finished difference Result 1074 states and 2927 transitions. [2021-08-06 13:48:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 13:48:48,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 [2021-08-06 13:48:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 13:48:48,058 INFO L225 Difference]: With dead ends: 1074 [2021-08-06 13:48:48,058 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 13:48:48,058 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 70.0ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-06 13:48:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 13:48:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 13:48:48,058 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) [2021-08-06 13:48:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 13:48:48,059 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-06 13:48:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 13:48:48,059 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 13:48:48,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-08-06 13:48:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 13:48:48,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 13:48:48,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 13:48:48,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 13:48:48,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 13:48:48,061 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 13:48:48,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 13:48:48,064 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 13:48:48,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 13:48:48,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 01:48:48 BasicIcfg [2021-08-06 13:48:48,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 13:48:48,066 INFO L168 Benchmark]: Toolchain (without parser) took 4106.72 ms. Allocated memory was 198.2 MB in the beginning and 468.7 MB in the end (delta: 270.5 MB). Free memory was 161.2 MB in the beginning and 234.1 MB in the end (delta: -72.9 MB). Peak memory consumption was 198.3 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,068 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 198.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 13:48:48,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.18 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 171.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.42 ms. Allocated memory is still 198.2 MB. Free memory was 171.3 MB in the beginning and 169.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,069 INFO L168 Benchmark]: Boogie Preprocessor took 28.61 ms. Allocated memory is still 198.2 MB. Free memory was 169.2 MB in the beginning and 167.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,069 INFO L168 Benchmark]: RCFGBuilder took 408.51 ms. Allocated memory is still 198.2 MB. Free memory was 167.6 MB in the beginning and 144.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,069 INFO L168 Benchmark]: TraceAbstraction took 3255.65 ms. Allocated memory was 198.2 MB in the beginning and 468.7 MB in the end (delta: 270.5 MB). Free memory was 143.5 MB in the beginning and 234.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 181.0 MB. Max. memory is 8.0 GB. [2021-08-06 13:48:48,070 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 198.2 MB. Free memory is still 179.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 354.18 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 171.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.42 ms. Allocated memory is still 198.2 MB. Free memory was 171.3 MB in the beginning and 169.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.61 ms. Allocated memory is still 198.2 MB. Free memory was 169.2 MB in the beginning and 167.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 408.51 ms. Allocated memory is still 198.2 MB. Free memory was 167.6 MB in the beginning and 144.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3255.65 ms. Allocated memory was 198.2 MB in the beginning and 468.7 MB in the end (delta: 270.5 MB). Free memory was 143.5 MB in the beginning and 234.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 181.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3183.2ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 73.4ms, AutomataDifference: 1258.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 154.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 704 SDtfs, 1098 SDslu, 2252 SDs, 0 SdLazy, 248 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 197.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 806.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5558occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 449.6ms AutomataMinimizationTime, 7 MinimizatonAttempts, 1218 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.1ms SsaConstructionTime, 154.9ms SatisfiabilityAnalysisTime, 899.2ms InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 1323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 13:48:48,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...