/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-ext/45_monabsex1_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:43:09,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:43:09,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:43:09,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:43:10,007 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 [2021-10-13 22:43:10,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:43:10,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:43:10,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:43:10,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:43:10,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:43:10,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:43:10,043 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:43:10,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:43:10,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:43:10,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:43:10,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:43:10,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:43:10,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:43:10,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:43:10,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:43:10,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:43:10,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:43:10,047 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:43:10,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:43:10,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:43:10,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:43:10,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:43:10,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:43:10,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:43:10,323 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:43:10,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-10-13 22:43:10,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55cdcb628/4c34fccbbfe148c8b0801858f8db7d5d/FLAGc2e1c18d8 [2021-10-13 22:43:10,903 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:43:10,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/45_monabsex1_vs.i [2021-10-13 22:43:10,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55cdcb628/4c34fccbbfe148c8b0801858f8db7d5d/FLAGc2e1c18d8 [2021-10-13 22:43:11,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55cdcb628/4c34fccbbfe148c8b0801858f8db7d5d [2021-10-13 22:43:11,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:43:11,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:43:11,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:43:11,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:43:11,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:43:11,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69513a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11, skipping insertion in model container [2021-10-13 22:43:11,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:43:11,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:43:11,593 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:43:11,713 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-ext/45_monabsex1_vs.i[30633,30646] [2021-10-13 22:43:11,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:43:11,730 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:43:11,742 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:43:11,764 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-ext/45_monabsex1_vs.i[30633,30646] [2021-10-13 22:43:11,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:43:11,795 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:43:11,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11 WrapperNode [2021-10-13 22:43:11,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:43:11,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:43:11,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:43:11,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:43:11,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:43:11,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:43:11,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:43:11,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:43:11,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:43:11,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:43:11,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:43:11,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:43:11,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (1/1) ... [2021-10-13 22:43:11,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:43:11,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:43:11,883 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) [2021-10-13 22:43:11,885 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 [2021-10-13 22:43:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-13 22:43:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-13 22:43:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:43:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 22:43:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:43:11,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:43:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:43:11,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 22:43:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:43:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:43:11,929 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:43:12,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:43:12,232 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 22:43:12,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:43:12 BoogieIcfgContainer [2021-10-13 22:43:12,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:43:12,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:43:12,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:43:12,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:43:12,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:43:11" (1/3) ... [2021-10-13 22:43:12,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4130bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:43:12, skipping insertion in model container [2021-10-13 22:43:12,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:43:11" (2/3) ... [2021-10-13 22:43:12,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4130bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:43:12, skipping insertion in model container [2021-10-13 22:43:12,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:43:12" (3/3) ... [2021-10-13 22:43:12,243 INFO L111 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs.i [2021-10-13 22:43:12,247 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:43:12,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:43:12,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 22:43:12,248 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:43:12,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,292 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 22:43:12,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:43:12,344 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 [2021-10-13 22:43:12,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 22:43:12,362 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 81 flow [2021-10-13 22:43:12,394 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 147 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 146 states have internal predecessors, (259), 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) [2021-10-13 22:43:12,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 146 states have internal predecessors, (259), 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) [2021-10-13 22:43:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:43:12,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:12,405 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] [2021-10-13 22:43:12,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 22:43:12,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:12,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1968629800, now seen corresponding path program 1 times [2021-10-13 22:43:12,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:12,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186965801] [2021-10-13 22:43:12,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:12,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:43:12,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:12,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186965801] [2021-10-13 22:43:12,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186965801] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:12,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:12,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:12,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615776831] [2021-10-13 22:43:12,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:12,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:12,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:12,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:12,656 INFO L87 Difference]: Start difference. First operand has 147 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 146 states have internal predecessors, (259), 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 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:12,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:12,693 INFO L93 Difference]: Finished difference Result 99 states and 161 transitions. [2021-10-13 22:43:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 22:43:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:12,707 INFO L225 Difference]: With dead ends: 99 [2021-10-13 22:43:12,708 INFO L226 Difference]: Without dead ends: 99 [2021-10-13 22:43:12,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:12,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-13 22:43:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-10-13 22:43:12,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.6428571428571428) internal successors, (161), 98 states have internal predecessors, (161), 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) [2021-10-13 22:43:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 161 transitions. [2021-10-13 22:43:12,746 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 161 transitions. Word has length 26 [2021-10-13 22:43:12,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:12,747 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 161 transitions. [2021-10-13 22:43:12,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:12,747 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions. [2021-10-13 22:43:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:43:12,749 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:12,750 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:12,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:43:12,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 22:43:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:12,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1081981275, now seen corresponding path program 1 times [2021-10-13 22:43:12,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:12,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288871268] [2021-10-13 22:43:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:12,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:12,781 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 22:43:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:12,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 22:43:12,823 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 22:43:12,824 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:43:12,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:12,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:12,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:43:12,830 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-10-13 22:43:12,830 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-10-13 22:43:12,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,839 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:12,854 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 22:43:12,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:43:12,859 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 [2021-10-13 22:43:12,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 22:43:12,860 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 49 transitions, 110 flow [2021-10-13 22:43:12,912 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1664 states, 1656 states have (on average 2.7403381642512077) internal successors, (4538), 1663 states have internal predecessors, (4538), 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) [2021-10-13 22:43:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 1664 states, 1656 states have (on average 2.7403381642512077) internal successors, (4538), 1663 states have internal predecessors, (4538), 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) [2021-10-13 22:43:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:43:12,918 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:12,918 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] [2021-10-13 22:43:12,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 22:43:12,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:12,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1648291016, now seen corresponding path program 1 times [2021-10-13 22:43:12,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:12,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197499136] [2021-10-13 22:43:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:12,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:43:12,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:12,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197499136] [2021-10-13 22:43:12,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197499136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:12,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:12,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:12,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125196046] [2021-10-13 22:43:12,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:12,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:12,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:12,978 INFO L87 Difference]: Start difference. First operand has 1664 states, 1656 states have (on average 2.7403381642512077) internal successors, (4538), 1663 states have internal predecessors, (4538), 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 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:13,031 INFO L93 Difference]: Finished difference Result 1169 states and 3009 transitions. [2021-10-13 22:43:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:13,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 22:43:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:13,045 INFO L225 Difference]: With dead ends: 1169 [2021-10-13 22:43:13,046 INFO L226 Difference]: Without dead ends: 1169 [2021-10-13 22:43:13,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2021-10-13 22:43:13,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1049. [2021-10-13 22:43:13,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1045 states have (on average 2.610526315789474) internal successors, (2728), 1048 states have internal predecessors, (2728), 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) [2021-10-13 22:43:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 2728 transitions. [2021-10-13 22:43:13,107 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 2728 transitions. Word has length 26 [2021-10-13 22:43:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:13,107 INFO L470 AbstractCegarLoop]: Abstraction has 1049 states and 2728 transitions. [2021-10-13 22:43:13,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 2728 transitions. [2021-10-13 22:43:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 22:43:13,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:13,110 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:13,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:43:13,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 22:43:13,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:13,111 INFO L82 PathProgramCache]: Analyzing trace with hash -951174834, now seen corresponding path program 1 times [2021-10-13 22:43:13,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:13,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691728406] [2021-10-13 22:43:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:13,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:43:13,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:13,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691728406] [2021-10-13 22:43:13,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691728406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:13,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:13,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:13,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117380942] [2021-10-13 22:43:13,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:13,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:13,153 INFO L87 Difference]: Start difference. First operand 1049 states and 2728 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:13,178 INFO L93 Difference]: Finished difference Result 1105 states and 2825 transitions. [2021-10-13 22:43:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:13,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 33 [2021-10-13 22:43:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:13,185 INFO L225 Difference]: With dead ends: 1105 [2021-10-13 22:43:13,185 INFO L226 Difference]: Without dead ends: 1105 [2021-10-13 22:43:13,186 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-10-13 22:43:13,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1009. [2021-10-13 22:43:13,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1006 states have (on average 2.5894632206759445) internal successors, (2605), 1008 states have internal predecessors, (2605), 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) [2021-10-13 22:43:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 2605 transitions. [2021-10-13 22:43:13,221 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 2605 transitions. Word has length 33 [2021-10-13 22:43:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:13,222 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 2605 transitions. [2021-10-13 22:43:13,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:13,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 2605 transitions. [2021-10-13 22:43:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 22:43:13,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:13,228 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:13,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:43:13,228 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 22:43:13,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:13,229 INFO L82 PathProgramCache]: Analyzing trace with hash 293181397, now seen corresponding path program 1 times [2021-10-13 22:43:13,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:13,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863025039] [2021-10-13 22:43:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:13,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:13,251 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 22:43:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:13,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 22:43:13,270 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 22:43:13,271 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:43:13,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:13,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:13,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:13,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:43:13,272 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-10-13 22:43:13,272 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-10-13 22:43:13,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:13,298 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 22:43:13,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:43:13,301 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 [2021-10-13 22:43:13,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-13 22:43:13,302 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 60 transitions, 141 flow [2021-10-13 22:43:13,753 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18711 states, 18692 states have (on average 3.650973678579071) internal successors, (68244), 18710 states have internal predecessors, (68244), 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) [2021-10-13 22:43:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 18711 states, 18692 states have (on average 3.650973678579071) internal successors, (68244), 18710 states have internal predecessors, (68244), 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) [2021-10-13 22:43:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:43:13,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:13,817 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] [2021-10-13 22:43:13,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 22:43:13,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:13,818 INFO L82 PathProgramCache]: Analyzing trace with hash -475214082, now seen corresponding path program 1 times [2021-10-13 22:43:13,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:13,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504134891] [2021-10-13 22:43:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:13,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:43:13,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:13,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504134891] [2021-10-13 22:43:13,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504134891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:13,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:13,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:13,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754504310] [2021-10-13 22:43:13,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:13,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:13,930 INFO L87 Difference]: Start difference. First operand has 18711 states, 18692 states have (on average 3.650973678579071) internal successors, (68244), 18710 states have internal predecessors, (68244), 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 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:14,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:14,263 INFO L93 Difference]: Finished difference Result 14114 states and 49167 transitions. [2021-10-13 22:43:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 22:43:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:14,502 INFO L225 Difference]: With dead ends: 14114 [2021-10-13 22:43:14,502 INFO L226 Difference]: Without dead ends: 14114 [2021-10-13 22:43:14,503 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:14,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14114 states. [2021-10-13 22:43:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14114 to 11969. [2021-10-13 22:43:15,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11969 states, 11961 states have (on average 3.529052754786389) internal successors, (42211), 11968 states have internal predecessors, (42211), 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) [2021-10-13 22:43:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11969 states to 11969 states and 42211 transitions. [2021-10-13 22:43:15,208 INFO L78 Accepts]: Start accepts. Automaton has 11969 states and 42211 transitions. Word has length 26 [2021-10-13 22:43:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:15,208 INFO L470 AbstractCegarLoop]: Abstraction has 11969 states and 42211 transitions. [2021-10-13 22:43:15,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 11969 states and 42211 transitions. [2021-10-13 22:43:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 22:43:15,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:15,210 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:15,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:43:15,211 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 22:43:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:15,211 INFO L82 PathProgramCache]: Analyzing trace with hash 405565790, now seen corresponding path program 1 times [2021-10-13 22:43:15,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:15,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883203430] [2021-10-13 22:43:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:15,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:43:15,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:15,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883203430] [2021-10-13 22:43:15,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883203430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:15,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:15,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:15,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170230564] [2021-10-13 22:43:15,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:15,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:15,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:15,269 INFO L87 Difference]: Start difference. First operand 11969 states and 42211 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:15,512 INFO L93 Difference]: Finished difference Result 14234 states and 49489 transitions. [2021-10-13 22:43:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:15,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 33 [2021-10-13 22:43:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:15,587 INFO L225 Difference]: With dead ends: 14234 [2021-10-13 22:43:15,588 INFO L226 Difference]: Without dead ends: 14234 [2021-10-13 22:43:15,588 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:15,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2021-10-13 22:43:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 12134. [2021-10-13 22:43:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12134 states, 12126 states have (on average 3.5211941283193138) internal successors, (42698), 12133 states have internal predecessors, (42698), 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) [2021-10-13 22:43:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12134 states to 12134 states and 42698 transitions. [2021-10-13 22:43:16,199 INFO L78 Accepts]: Start accepts. Automaton has 12134 states and 42698 transitions. Word has length 33 [2021-10-13 22:43:16,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:16,201 INFO L470 AbstractCegarLoop]: Abstraction has 12134 states and 42698 transitions. [2021-10-13 22:43:16,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12134 states and 42698 transitions. [2021-10-13 22:43:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:43:16,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:16,205 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:16,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 22:43:16,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 22:43:16,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:16,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1251526985, now seen corresponding path program 1 times [2021-10-13 22:43:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:16,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446194621] [2021-10-13 22:43:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:16,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:43:16,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:16,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446194621] [2021-10-13 22:43:16,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446194621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:16,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:16,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:43:16,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98126847] [2021-10-13 22:43:16,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:43:16,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:43:16,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:43:16,287 INFO L87 Difference]: Start difference. First operand 12134 states and 42698 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-13 22:43:16,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:16,669 INFO L93 Difference]: Finished difference Result 18994 states and 65118 transitions. [2021-10-13 22:43:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:43:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-10-13 22:43:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:16,799 INFO L225 Difference]: With dead ends: 18994 [2021-10-13 22:43:16,800 INFO L226 Difference]: Without dead ends: 18994 [2021-10-13 22:43:16,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:43:16,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18994 states. [2021-10-13 22:43:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18994 to 12634. [2021-10-13 22:43:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12634 states, 12626 states have (on average 3.5415016632345955) internal successors, (44715), 12633 states have internal predecessors, (44715), 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) [2021-10-13 22:43:17,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12634 states to 12634 states and 44715 transitions. [2021-10-13 22:43:17,390 INFO L78 Accepts]: Start accepts. Automaton has 12634 states and 44715 transitions. Word has length 39 [2021-10-13 22:43:17,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:17,391 INFO L470 AbstractCegarLoop]: Abstraction has 12634 states and 44715 transitions. [2021-10-13 22:43:17,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-13 22:43:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 12634 states and 44715 transitions. [2021-10-13 22:43:17,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:43:17,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:17,393 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:17,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 22:43:17,393 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 22:43:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:17,394 INFO L82 PathProgramCache]: Analyzing trace with hash 765318001, now seen corresponding path program 1 times [2021-10-13 22:43:17,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:17,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282397629] [2021-10-13 22:43:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:17,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:43:17,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:17,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282397629] [2021-10-13 22:43:17,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282397629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:17,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:17,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:43:17,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598161762] [2021-10-13 22:43:17,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:43:17,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:43:17,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:43:17,436 INFO L87 Difference]: Start difference. First operand 12634 states and 44715 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:43:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:17,620 INFO L93 Difference]: Finished difference Result 18389 states and 62806 transitions. [2021-10-13 22:43:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:43:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 39 [2021-10-13 22:43:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:17,693 INFO L225 Difference]: With dead ends: 18389 [2021-10-13 22:43:17,693 INFO L226 Difference]: Without dead ends: 18389 [2021-10-13 22:43:17,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:43:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18389 states. [2021-10-13 22:43:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18389 to 11269. [2021-10-13 22:43:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11269 states, 11261 states have (on average 3.515318355385845) internal successors, (39586), 11268 states have internal predecessors, (39586), 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) [2021-10-13 22:43:18,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11269 states to 11269 states and 39586 transitions. [2021-10-13 22:43:18,327 INFO L78 Accepts]: Start accepts. Automaton has 11269 states and 39586 transitions. Word has length 39 [2021-10-13 22:43:18,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:18,327 INFO L470 AbstractCegarLoop]: Abstraction has 11269 states and 39586 transitions. [2021-10-13 22:43:18,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:43:18,328 INFO L276 IsEmpty]: Start isEmpty. Operand 11269 states and 39586 transitions. [2021-10-13 22:43:18,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 22:43:18,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:18,332 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:18,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 22:43:18,332 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-13 22:43:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:18,333 INFO L82 PathProgramCache]: Analyzing trace with hash -529460892, now seen corresponding path program 1 times [2021-10-13 22:43:18,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:18,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901262298] [2021-10-13 22:43:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:18,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:18,351 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 22:43:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:43:18,376 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 22:43:18,377 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 22:43:18,377 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:43:18,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:18,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:18,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:18,378 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:43:18,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 22:43:18,378 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-10-13 22:43:18,378 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-10-13 22:43:18,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,425 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:43:18,426 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 22:43:18,427 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:43:18,431 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 [2021-10-13 22:43:18,432 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:43:18,437 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 174 flow [2021-10-13 22:43:23,796 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 207308 states, 207266 states have (on average 4.55917034149354) internal successors, (944961), 207307 states have internal predecessors, (944961), 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) [2021-10-13 22:43:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 207308 states, 207266 states have (on average 4.55917034149354) internal successors, (944961), 207307 states have internal predecessors, (944961), 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) [2021-10-13 22:43:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 22:43:24,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:24,237 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] [2021-10-13 22:43:24,237 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:43:24,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:24,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1054955358, now seen corresponding path program 1 times [2021-10-13 22:43:24,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:24,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439539101] [2021-10-13 22:43:24,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:24,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:43:24,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:24,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439539101] [2021-10-13 22:43:24,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439539101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:24,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:24,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:24,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076920576] [2021-10-13 22:43:24,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:24,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:24,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:24,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:24,633 INFO L87 Difference]: Start difference. First operand has 207308 states, 207266 states have (on average 4.55917034149354) internal successors, (944961), 207307 states have internal predecessors, (944961), 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 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:27,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:27,679 INFO L93 Difference]: Finished difference Result 163559 states and 718185 transitions. [2021-10-13 22:43:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 22:43:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:29,494 INFO L225 Difference]: With dead ends: 163559 [2021-10-13 22:43:29,495 INFO L226 Difference]: Without dead ends: 163559 [2021-10-13 22:43:29,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163559 states. [2021-10-13 22:43:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163559 to 134909. [2021-10-13 22:43:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134909 states, 134893 states have (on average 4.440704854959116) internal successors, (599020), 134908 states have internal predecessors, (599020), 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) [2021-10-13 22:43:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134909 states to 134909 states and 599020 transitions. [2021-10-13 22:43:37,411 INFO L78 Accepts]: Start accepts. Automaton has 134909 states and 599020 transitions. Word has length 26 [2021-10-13 22:43:37,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:37,411 INFO L470 AbstractCegarLoop]: Abstraction has 134909 states and 599020 transitions. [2021-10-13 22:43:37,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 22:43:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 134909 states and 599020 transitions. [2021-10-13 22:43:37,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 22:43:37,412 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:37,412 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:37,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 22:43:37,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:43:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1019597009, now seen corresponding path program 1 times [2021-10-13 22:43:37,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:37,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866818475] [2021-10-13 22:43:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:37,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:43:37,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:37,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866818475] [2021-10-13 22:43:37,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866818475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:37,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:37,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:43:37,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353204863] [2021-10-13 22:43:37,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:43:37,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:43:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:37,436 INFO L87 Difference]: Start difference. First operand 134909 states and 599020 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:39,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:39,601 INFO L93 Difference]: Finished difference Result 170873 states and 749819 transitions. [2021-10-13 22:43:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:43:39,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 33 [2021-10-13 22:43:39,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:41,496 INFO L225 Difference]: With dead ends: 170873 [2021-10-13 22:43:41,496 INFO L226 Difference]: Without dead ends: 170873 [2021-10-13 22:43:41,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:43:42,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170873 states. [2021-10-13 22:43:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170873 to 141089. [2021-10-13 22:43:47,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141089 states, 141073 states have (on average 4.437383482310577) internal successors, (625995), 141088 states have internal predecessors, (625995), 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) [2021-10-13 22:43:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141089 states to 141089 states and 625995 transitions. [2021-10-13 22:43:49,209 INFO L78 Accepts]: Start accepts. Automaton has 141089 states and 625995 transitions. Word has length 33 [2021-10-13 22:43:49,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:43:49,209 INFO L470 AbstractCegarLoop]: Abstraction has 141089 states and 625995 transitions. [2021-10-13 22:43:49,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:43:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 141089 states and 625995 transitions. [2021-10-13 22:43:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:43:49,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:43:49,212 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:43:49,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 22:43:49,212 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:43:49,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:43:49,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1928734456, now seen corresponding path program 1 times [2021-10-13 22:43:49,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:43:49,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232328073] [2021-10-13 22:43:49,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:43:49,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:43:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:43:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 22:43:49,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:43:49,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232328073] [2021-10-13 22:43:49,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232328073] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:43:49,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:43:49,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:43:49,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665189997] [2021-10-13 22:43:49,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:43:49,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:43:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:43:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:43:49,247 INFO L87 Difference]: Start difference. First operand 141089 states and 625995 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:43:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:43:53,960 INFO L93 Difference]: Finished difference Result 235282 states and 1017841 transitions. [2021-10-13 22:43:53,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:43:53,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 39 [2021-10-13 22:43:53,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:43:57,610 INFO L225 Difference]: With dead ends: 235282 [2021-10-13 22:43:57,611 INFO L226 Difference]: Without dead ends: 235282 [2021-10-13 22:43:57,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 21.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:43:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235282 states. [2021-10-13 22:44:05,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235282 to 147442. [2021-10-13 22:44:05,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147442 states, 147426 states have (on average 4.464144723454479) internal successors, (658131), 147441 states have internal predecessors, (658131), 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) [2021-10-13 22:44:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147442 states to 147442 states and 658131 transitions. [2021-10-13 22:44:07,093 INFO L78 Accepts]: Start accepts. Automaton has 147442 states and 658131 transitions. Word has length 39 [2021-10-13 22:44:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:44:07,093 INFO L470 AbstractCegarLoop]: Abstraction has 147442 states and 658131 transitions. [2021-10-13 22:44:07,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:44:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 147442 states and 658131 transitions. [2021-10-13 22:44:07,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:44:07,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:44:07,096 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:44:07,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 22:44:07,097 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:44:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:44:07,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1775230096, now seen corresponding path program 1 times [2021-10-13 22:44:07,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:44:07,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149331873] [2021-10-13 22:44:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:44:07,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:44:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:44:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:44:07,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:44:07,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149331873] [2021-10-13 22:44:07,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149331873] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:44:07,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:44:07,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:44:07,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333925869] [2021-10-13 22:44:07,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:44:07,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:44:07,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:44:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:44:07,139 INFO L87 Difference]: Start difference. First operand 147442 states and 658131 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:44:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:44:10,351 INFO L93 Difference]: Finished difference Result 231575 states and 997754 transitions. [2021-10-13 22:44:10,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:44:10,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 39 [2021-10-13 22:44:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:44:13,717 INFO L225 Difference]: With dead ends: 231575 [2021-10-13 22:44:13,717 INFO L226 Difference]: Without dead ends: 231575 [2021-10-13 22:44:13,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:44:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231575 states. [2021-10-13 22:44:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231575 to 135319. [2021-10-13 22:44:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135319 states, 135303 states have (on average 4.425223387508037) internal successors, (598746), 135318 states have internal predecessors, (598746), 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) [2021-10-13 22:44:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135319 states to 135319 states and 598746 transitions. [2021-10-13 22:44:24,387 INFO L78 Accepts]: Start accepts. Automaton has 135319 states and 598746 transitions. Word has length 39 [2021-10-13 22:44:24,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:44:24,387 INFO L470 AbstractCegarLoop]: Abstraction has 135319 states and 598746 transitions. [2021-10-13 22:44:24,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:44:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand 135319 states and 598746 transitions. [2021-10-13 22:44:24,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 22:44:24,390 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:44:24,390 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:44:24,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 22:44:24,390 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:44:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:44:24,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1902708169, now seen corresponding path program 1 times [2021-10-13 22:44:24,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:44:24,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819581138] [2021-10-13 22:44:24,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:44:24,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:44:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:44:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 22:44:24,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:44:24,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819581138] [2021-10-13 22:44:24,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819581138] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:44:24,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:44:24,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:44:24,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999360836] [2021-10-13 22:44:24,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:44:24,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:44:24,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:44:24,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:44:24,414 INFO L87 Difference]: Start difference. First operand 135319 states and 598746 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-10-13 22:44:26,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:44:26,932 INFO L93 Difference]: Finished difference Result 168604 states and 734913 transitions. [2021-10-13 22:44:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:44:26,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 40 [2021-10-13 22:44:26,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:44:28,265 INFO L225 Difference]: With dead ends: 168604 [2021-10-13 22:44:28,265 INFO L226 Difference]: Without dead ends: 168604 [2021-10-13 22:44:28,266 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:44:29,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168604 states. [2021-10-13 22:44:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168604 to 139684. [2021-10-13 22:44:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139684 states, 139668 states have (on average 4.413101068247559) internal successors, (616369), 139683 states have internal predecessors, (616369), 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) [2021-10-13 22:44:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139684 states to 139684 states and 616369 transitions. [2021-10-13 22:44:36,046 INFO L78 Accepts]: Start accepts. Automaton has 139684 states and 616369 transitions. Word has length 40 [2021-10-13 22:44:36,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:44:36,047 INFO L470 AbstractCegarLoop]: Abstraction has 139684 states and 616369 transitions. [2021-10-13 22:44:36,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-10-13 22:44:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 139684 states and 616369 transitions. [2021-10-13 22:44:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:44:36,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:44:36,059 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:44:36,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 22:44:36,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:44:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:44:36,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1811675494, now seen corresponding path program 1 times [2021-10-13 22:44:36,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:44:36,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052916258] [2021-10-13 22:44:36,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:44:36,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:44:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:44:36,097 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 22:44:36,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:44:36,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052916258] [2021-10-13 22:44:36,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052916258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:44:36,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:44:36,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:44:36,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234337328] [2021-10-13 22:44:36,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:44:36,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:44:36,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:44:36,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:44:36,100 INFO L87 Difference]: Start difference. First operand 139684 states and 616369 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-10-13 22:44:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:44:39,314 INFO L93 Difference]: Finished difference Result 235406 states and 1012575 transitions. [2021-10-13 22:44:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:44:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 46 [2021-10-13 22:44:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:44:41,598 INFO L225 Difference]: With dead ends: 235406 [2021-10-13 22:44:41,598 INFO L226 Difference]: Without dead ends: 235406 [2021-10-13 22:44:41,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:44:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235406 states. [2021-10-13 22:44:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235406 to 146014. [2021-10-13 22:44:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146014 states, 145998 states have (on average 4.439547117083795) internal successors, (648165), 146013 states have internal predecessors, (648165), 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) [2021-10-13 22:44:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146014 states to 146014 states and 648165 transitions. [2021-10-13 22:44:50,732 INFO L78 Accepts]: Start accepts. Automaton has 146014 states and 648165 transitions. Word has length 46 [2021-10-13 22:44:50,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:44:50,733 INFO L470 AbstractCegarLoop]: Abstraction has 146014 states and 648165 transitions. [2021-10-13 22:44:50,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2021-10-13 22:44:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 146014 states and 648165 transitions. [2021-10-13 22:44:50,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 22:44:50,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:44:50,743 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:44:50,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 22:44:50,743 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:44:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:44:50,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2799802, now seen corresponding path program 1 times [2021-10-13 22:44:50,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:44:50,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637152692] [2021-10-13 22:44:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:44:50,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:44:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:44:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 22:44:50,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:44:50,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637152692] [2021-10-13 22:44:50,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637152692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:44:50,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:44:50,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 22:44:50,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811193066] [2021-10-13 22:44:50,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:44:50,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:44:50,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:44:50,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:44:50,798 INFO L87 Difference]: Start difference. First operand 146014 states and 648165 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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)