/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-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 04:53:23,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 04:53:23,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 04:53:23,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 04:53:23,187 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-POR-NewStatesSleep-NoLbe-Random42.epf [2021-08-07 04:53:23,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 04:53:23,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 04:53:23,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 04:53:23,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 04:53:23,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 04:53:23,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 04:53:23,229 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 04:53:23,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 04:53:23,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 04:53:23,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 04:53:23,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 04:53:23,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 04:53:23,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 04:53:23,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 04:53:23,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 04:53:23,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 04:53:23,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 04:53:23,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 04:53:23,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 04:53:23,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 04:53:23,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 04:53:23,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 04:53:23,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 04:53:23,233 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-07 04:53:23,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-07 04:53:23,243 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 04:53:23,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 04:53:23,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 04:53:23,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 04:53:23,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-07 04:53:23,595 INFO L275 PluginConnector]: CDTParser initialized [2021-08-07 04:53:23,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-08-07 04:53:23,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac47493f/ed8628be55b1479290afecb0469b3506/FLAG2786f8bec [2021-08-07 04:53:24,267 INFO L306 CDTParser]: Found 1 translation units. [2021-08-07 04:53:24,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-08-07 04:53:24,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac47493f/ed8628be55b1479290afecb0469b3506/FLAG2786f8bec [2021-08-07 04:53:24,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac47493f/ed8628be55b1479290afecb0469b3506 [2021-08-07 04:53:24,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 04:53:24,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-07 04:53:24,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-07 04:53:24,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-07 04:53:24,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-07 04:53:24,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 04:53:24" (1/1) ... [2021-08-07 04:53:24,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfe42a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:24, skipping insertion in model container [2021-08-07 04:53:24,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 04:53:24" (1/1) ... [2021-08-07 04:53:24,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-07 04:53:24,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-07 04:53:24,858 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-07 04:53:25,054 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-08-07 04:53:25,066 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-08-07 04:53:25,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-07 04:53:25,089 INFO L203 MainTranslator]: Completed pre-run [2021-08-07 04:53:25,100 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-07 04:53:25,132 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-08-07 04:53:25,136 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-08-07 04:53:25,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-07 04:53:25,167 INFO L208 MainTranslator]: Completed translation [2021-08-07 04:53:25,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25 WrapperNode [2021-08-07 04:53:25,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-07 04:53:25,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 04:53:25,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 04:53:25,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 04:53:25,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 04:53:25,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 04:53:25,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 04:53:25,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 04:53:25,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 04:53:25,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 04:53:25,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 04:53:25,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 04:53:25,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (1/1) ... [2021-08-07 04:53:25,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 04:53:25,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:53:25,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-07 04:53:25,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-08-07 04:53:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-07 04:53:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-07 04:53:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-07 04:53:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-07 04:53:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-07 04:53:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-07 04:53:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 04:53:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 04:53:25,347 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 04:53:25,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 04:53:25,681 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-07 04:53:25,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 04:53:25 BoogieIcfgContainer [2021-08-07 04:53:25,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 04:53:25,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 04:53:25,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 04:53:25,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 04:53:25,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 04:53:24" (1/3) ... [2021-08-07 04:53:25,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab11a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 04:53:25, skipping insertion in model container [2021-08-07 04:53:25,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 04:53:25" (2/3) ... [2021-08-07 04:53:25,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab11a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 04:53:25, skipping insertion in model container [2021-08-07 04:53:25,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 04:53:25" (3/3) ... [2021-08-07 04:53:25,705 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-08-07 04:53:25,710 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 04:53:25,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 04:53:25,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-07 04:53:25,710 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 04:53:25,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,773 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,776 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,783 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,784 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,785 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,787 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,787 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,787 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,787 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,788 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,789 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,789 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,789 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,792 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,793 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,795 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,796 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,797 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,798 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,800 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,801 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,803 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,804 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,804 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,804 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,804 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,809 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-07 04:53:25,848 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-07 04:53:25,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 04:53:25,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:53:25,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 04:53:25,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-08-07 04:53:25,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2021-08-07 04:53:25,954 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 04:53:25,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-07 04:53:26,007 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:26,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1865189703, now seen corresponding path program 1 times [2021-08-07 04:53:26,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:26,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747804728] [2021-08-07 04:53:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:26,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:26,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:26,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747804728] [2021-08-07 04:53:26,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747804728] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:26,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:26,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-07 04:53:26,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768035031] [2021-08-07 04:53:26,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-07 04:53:26,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:26,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-07 04:53:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-07 04:53:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:26,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 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) [2021-08-07 04:53:26,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-07 04:53:26,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:26,297 INFO L82 PathProgramCache]: Analyzing trace with hash -314146950, now seen corresponding path program 1 times [2021-08-07 04:53:26,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:26,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822810654] [2021-08-07 04:53:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:26,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:26,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:26,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822810654] [2021-08-07 04:53:26,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822810654] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:26,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:26,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 04:53:26,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339803905] [2021-08-07 04:53:26,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 04:53:26,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 04:53:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 04:53:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,360 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:26,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:26,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:26,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-07 04:53:26,425 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:26,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1213236659, now seen corresponding path program 1 times [2021-08-07 04:53:26,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:26,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85853327] [2021-08-07 04:53:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:26,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:26,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:26,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85853327] [2021-08-07 04:53:26,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85853327] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:26,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:26,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:26,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605353741] [2021-08-07 04:53:26,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:26,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:26,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:26,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:26,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,553 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:26,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:26,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:26,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:26,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-07 04:53:26,825 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash 135232141, now seen corresponding path program 2 times [2021-08-07 04:53:26,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:26,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155679833] [2021-08-07 04:53:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:26,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:26,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:26,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155679833] [2021-08-07 04:53:26,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155679833] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:26,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:26,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:26,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604004796] [2021-08-07 04:53:26,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:26,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:26,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:26,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,953 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:26,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:26,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:26,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:26,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:26,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-07 04:53:27,242 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:27,244 INFO L82 PathProgramCache]: Analyzing trace with hash -2042314378, now seen corresponding path program 1 times [2021-08-07 04:53:27,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:27,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699886853] [2021-08-07 04:53:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:27,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 04:53:27,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:27,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699886853] [2021-08-07 04:53:27,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699886853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:27,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:27,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:27,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472895192] [2021-08-07 04:53:27,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:27,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,364 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:27,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:27,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-07 04:53:27,569 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:27,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:27,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1950090553, now seen corresponding path program 1 times [2021-08-07 04:53:27,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:27,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203577667] [2021-08-07 04:53:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:27,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 04:53:27,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:27,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203577667] [2021-08-07 04:53:27,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203577667] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:27,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:27,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:27,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611356644] [2021-08-07 04:53:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,675 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:27,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:27,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-07 04:53:27,977 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1423824558, now seen corresponding path program 1 times [2021-08-07 04:53:27,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:27,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73568876] [2021-08-07 04:53:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:27,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 04:53:28,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:28,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73568876] [2021-08-07 04:53:28,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73568876] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:28,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:28,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:28,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867129881] [2021-08-07 04:53:28,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:28,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,065 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:28,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:28,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-07 04:53:28,336 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1146658593, now seen corresponding path program 1 times [2021-08-07 04:53:28,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:28,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079662758] [2021-08-07 04:53:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:28,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:28,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:28,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079662758] [2021-08-07 04:53:28,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079662758] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:28,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:28,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-07 04:53:28,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149157202] [2021-08-07 04:53:28,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-07 04:53:28,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-07 04:53:28,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-07 04:53:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,389 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:28,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:28,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 04:53:28,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-07 04:53:28,660 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1394962391, now seen corresponding path program 3 times [2021-08-07 04:53:28,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:28,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259732439] [2021-08-07 04:53:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:28,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:28,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:28,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259732439] [2021-08-07 04:53:28,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259732439] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:28,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:28,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:28,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897385080] [2021-08-07 04:53:28,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:28,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:28,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 04:53:28,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 04:53:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-07 04:53:28,838 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:28,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1751149930, now seen corresponding path program 1 times [2021-08-07 04:53:28,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:28,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829216984] [2021-08-07 04:53:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:28,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:28,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:28,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829216984] [2021-08-07 04:53:28,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829216984] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:28,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:28,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:28,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674171606] [2021-08-07 04:53:28,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:28,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:28,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,886 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:28,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:28,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:29,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-07 04:53:29,135 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:29,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:29,135 INFO L82 PathProgramCache]: Analyzing trace with hash 637064633, now seen corresponding path program 1 times [2021-08-07 04:53:29,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:29,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773283342] [2021-08-07 04:53:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:29,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-08-07 04:53:29,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:29,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773283342] [2021-08-07 04:53:29,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773283342] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:29,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:29,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:29,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335189348] [2021-08-07 04:53:29,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:29,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:29,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:29,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,175 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:29,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:29,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:29,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:29,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:29,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:29,548 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-07 04:53:29,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-07 04:53:29,563 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was SAFE (1/3) [2021-08-07 04:53:29,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 04:53:29,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:53:29,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 04:53:29,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-08-07 04:53:29,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 04:53:29,580 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 04:53:29,581 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-07 04:53:29,594 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 04:53:29,595 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 04:53:29,595 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-08-07 04:53:29,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 04:53:29,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:53:29,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-08-07 04:53:29,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-08-07 04:53:29,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork0 ======== [2021-08-07 04:53:29,602 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 04:53:29,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-07 04:53:29,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:29,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1282556589, now seen corresponding path program 1 times [2021-08-07 04:53:29,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:29,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555656801] [2021-08-07 04:53:29,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:29,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:29,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:29,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:29,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555656801] [2021-08-07 04:53:29,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555656801] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:29,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:29,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-07 04:53:29,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941893328] [2021-08-07 04:53:29,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-07 04:53:29,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-07 04:53:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-07 04:53:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,632 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:29,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-07 04:53:29,635 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:29,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:29,635 INFO L82 PathProgramCache]: Analyzing trace with hash 85405133, now seen corresponding path program 1 times [2021-08-07 04:53:29,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:29,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981081099] [2021-08-07 04:53:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:29,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:29,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981081099] [2021-08-07 04:53:29,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981081099] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:29,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:29,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 04:53:29,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909304971] [2021-08-07 04:53:29,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 04:53:29,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 04:53:29,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 04:53:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:29,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:29,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:29,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-07 04:53:29,769 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1945698779, now seen corresponding path program 1 times [2021-08-07 04:53:29,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:29,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818816244] [2021-08-07 04:53:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:29,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:29,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:29,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:29,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818816244] [2021-08-07 04:53:29,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818816244] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:29,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:29,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:29,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010054238] [2021-08-07 04:53:29,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:29,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,825 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:29,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:29,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:29,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:29,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-07 04:53:30,023 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:30,024 INFO L82 PathProgramCache]: Analyzing trace with hash 743198411, now seen corresponding path program 2 times [2021-08-07 04:53:30,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:30,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497058245] [2021-08-07 04:53:30,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:30,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:30,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:30,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497058245] [2021-08-07 04:53:30,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497058245] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:30,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:30,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:30,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064599643] [2021-08-07 04:53:30,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:30,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:30,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,059 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:30,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:30,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-07 04:53:30,279 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:30,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:30,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1169974076, now seen corresponding path program 1 times [2021-08-07 04:53:30,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:30,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307912816] [2021-08-07 04:53:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:30,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 04:53:30,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:30,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307912816] [2021-08-07 04:53:30,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307912816] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:30,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:30,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:30,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380924616] [2021-08-07 04:53:30,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:30,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:30,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:30,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,358 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:30,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:30,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-07 04:53:30,485 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1448383895, now seen corresponding path program 1 times [2021-08-07 04:53:30,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:30,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003292089] [2021-08-07 04:53:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:30,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 04:53:30,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:30,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003292089] [2021-08-07 04:53:30,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003292089] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:30,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:30,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:30,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882599555] [2021-08-07 04:53:30,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:30,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:30,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:30,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,524 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:30,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-07 04:53:30,848 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:30,849 INFO L82 PathProgramCache]: Analyzing trace with hash -971519324, now seen corresponding path program 1 times [2021-08-07 04:53:30,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:30,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728900741] [2021-08-07 04:53:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:30,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 04:53:30,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:30,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728900741] [2021-08-07 04:53:30,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728900741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:30,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:30,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:30,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447650605] [2021-08-07 04:53:30,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:30,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,900 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:30,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:30,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-07 04:53:31,240 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:31,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1790486481, now seen corresponding path program 1 times [2021-08-07 04:53:31,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:31,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279884688] [2021-08-07 04:53:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:31,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:31,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:31,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279884688] [2021-08-07 04:53:31,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279884688] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:31,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:31,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-07 04:53:31,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478277782] [2021-08-07 04:53:31,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-07 04:53:31,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-07 04:53:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-07 04:53:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:31,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:31,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-07 04:53:31,619 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:31,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:31,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1522920017, now seen corresponding path program 3 times [2021-08-07 04:53:31,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:31,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789664522] [2021-08-07 04:53:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:31,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:31,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:31,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789664522] [2021-08-07 04:53:31,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789664522] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:31,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:31,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:31,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851328812] [2021-08-07 04:53:31,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:31,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:31,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,660 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:31,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:31,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-07 04:53:31,824 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:31,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:31,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1653387212, now seen corresponding path program 1 times [2021-08-07 04:53:31,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:31,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876116304] [2021-08-07 04:53:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:31,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:53:31,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:31,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876116304] [2021-08-07 04:53:31,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876116304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:31,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:31,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:31,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026664630] [2021-08-07 04:53:31,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:31,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:31,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:31,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,858 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:31,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:31,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-07 04:53:32,058 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-07 04:53:32,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:53:32,058 INFO L82 PathProgramCache]: Analyzing trace with hash -566666799, now seen corresponding path program 1 times [2021-08-07 04:53:32,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:53:32,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129321864] [2021-08-07 04:53:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:53:32,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:53:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:53:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-08-07 04:53:32,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:53:32,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129321864] [2021-08-07 04:53:32,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129321864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 04:53:32,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 04:53:32,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-07 04:53:32,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438542066] [2021-08-07 04:53:32,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 04:53:32,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:53:32,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 04:53:32,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 04:53:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,155 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:53:32,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:32,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 04:53:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-07 04:53:32,397 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-07 04:53:32,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-07 04:53:32,398 INFO L308 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork0 was SAFE (3/3) [2021-08-07 04:53:32,399 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 04:53:32,399 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 04:53:32,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 04:53:32 BasicIcfg [2021-08-07 04:53:32,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 04:53:32,402 INFO L168 Benchmark]: Toolchain (without parser) took 7723.79 ms. Allocated memory was 174.1 MB in the beginning and 627.0 MB in the end (delta: 453.0 MB). Free memory was 137.5 MB in the beginning and 402.6 MB in the end (delta: -265.1 MB). Peak memory consumption was 187.9 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,402 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory was 156.0 MB in the beginning and 155.9 MB in the end (delta: 114.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 04:53:32,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.88 ms. Allocated memory is still 174.1 MB. Free memory was 137.3 MB in the beginning and 147.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.46 ms. Allocated memory is still 174.1 MB. Free memory was 147.0 MB in the beginning and 145.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,402 INFO L168 Benchmark]: Boogie Preprocessor took 45.80 ms. Allocated memory is still 174.1 MB. Free memory was 145.0 MB in the beginning and 143.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,402 INFO L168 Benchmark]: RCFGBuilder took 420.55 ms. Allocated memory is still 174.1 MB. Free memory was 143.6 MB in the beginning and 115.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,403 INFO L168 Benchmark]: TraceAbstraction took 6716.59 ms. Allocated memory was 174.1 MB in the beginning and 627.0 MB in the end (delta: 453.0 MB). Free memory was 115.3 MB in the beginning and 402.6 MB in the end (delta: -287.4 MB). Peak memory consumption was 165.3 MB. Max. memory is 8.0 GB. [2021-08-07 04:53:32,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 174.1 MB. Free memory was 156.0 MB in the beginning and 155.9 MB in the end (delta: 114.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 488.88 ms. Allocated memory is still 174.1 MB. Free memory was 137.3 MB in the beginning and 147.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.46 ms. Allocated memory is still 174.1 MB. Free memory was 147.0 MB in the beginning and 145.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.80 ms. Allocated memory is still 174.1 MB. Free memory was 145.0 MB in the beginning and 143.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.55 ms. Allocated memory is still 174.1 MB. Free memory was 143.6 MB in the beginning and 115.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6716.59 ms. Allocated memory was 174.1 MB in the beginning and 627.0 MB in the end (delta: 453.0 MB). Free memory was 115.3 MB in the beginning and 402.6 MB in the end (delta: -287.4 MB). Peak memory consumption was 165.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 127498, positive: 106910, positive conditional: 106910, positive unconditional: 0, negative: 20588, negative conditional: 20588, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107861, positive: 106910, positive conditional: 106910, positive unconditional: 0, negative: 951, negative conditional: 951, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 107861, positive: 106910, positive conditional: 106910, positive unconditional: 0, negative: 951, negative conditional: 951, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116123, positive: 106910, positive conditional: 106895, positive unconditional: 15, negative: 9213, negative conditional: 8262, negative unconditional: 951, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 116123, positive: 106910, positive conditional: 8322, positive unconditional: 98588, negative: 9213, negative conditional: 624, negative unconditional: 8589, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 116123, positive: 106910, positive conditional: 8322, positive unconditional: 98588, negative: 9213, negative conditional: 624, negative unconditional: 8589, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3211, positive: 3127, positive conditional: 493, positive unconditional: 2634, negative: 84, negative conditional: 39, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3211, positive: 3112, positive conditional: 0, positive unconditional: 3112, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 99, positive: 15, positive conditional: 13, positive unconditional: 2, negative: 84, negative conditional: 39, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, positive: 26, positive conditional: 23, positive unconditional: 2, negative: 141, negative conditional: 72, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116123, positive: 103783, positive conditional: 7829, positive unconditional: 95954, negative: 9129, negative conditional: 585, negative unconditional: 8544, unknown: 3211, unknown conditional: 532, unknown unconditional: 2679] , Statistics on independence cache: Total cache size (in pairs): 3211, Positive cache size: 3127, Positive conditional cache size: 493, Positive unconditional cache size: 2634, Negative cache size: 84, Negative conditional cache size: 39, Negative unconditional cache size: 45, Eliminated conditions: 106211, Maximal queried relation: 11, Independence queries for same thread: 19637 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 311, positive: 215, positive conditional: 215, positive unconditional: 0, negative: 96, negative conditional: 96, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 215, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 215, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 215, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 215, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 215, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 215, unknown conditional: 0, unknown unconditional: 215] , Statistics on independence cache: Total cache size (in pairs): 215, Positive cache size: 215, Positive conditional cache size: 0, Positive unconditional cache size: 215, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 96 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 168076, positive: 137038, positive conditional: 137038, positive unconditional: 0, negative: 31038, negative conditional: 31038, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138478, positive: 137038, positive conditional: 137038, positive unconditional: 0, negative: 1440, negative conditional: 1440, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 138478, positive: 137038, positive conditional: 137038, positive unconditional: 0, negative: 1440, negative conditional: 1440, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149633, positive: 137038, positive conditional: 137012, positive unconditional: 26, negative: 12595, negative conditional: 11155, negative unconditional: 1440, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 149633, positive: 137038, positive conditional: 9246, positive unconditional: 127792, negative: 12595, negative conditional: 1240, negative unconditional: 11355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 149633, positive: 137038, positive conditional: 9246, positive unconditional: 127792, negative: 12595, negative conditional: 1240, negative unconditional: 11355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3390, positive: 3293, positive conditional: 445, positive unconditional: 2848, negative: 97, negative conditional: 48, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3390, positive: 3279, positive conditional: 0, positive unconditional: 3279, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, positive: 14, positive conditional: 13, positive unconditional: 1, negative: 97, negative conditional: 48, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, positive: 14, positive conditional: 13, positive unconditional: 1, negative: 110, negative conditional: 44, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 149633, positive: 133745, positive conditional: 8801, positive unconditional: 124944, negative: 12498, negative conditional: 1192, negative unconditional: 11306, unknown: 3390, unknown conditional: 493, unknown unconditional: 2897] , Statistics on independence cache: Total cache size (in pairs): 3390, Positive cache size: 3293, Positive conditional cache size: 445, Positive unconditional cache size: 2848, Negative cache size: 97, Negative conditional cache size: 48, Negative unconditional cache size: 49, Eliminated conditions: 137681, Maximal queried relation: 11, Independence queries for same thread: 29598 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3653.3ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.0ms, PartialOrderReductionTime: 2460.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.4ms SsaConstructionTime, 144.1ms SatisfiabilityAnalysisTime, 648.6ms InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 643 ConstructedInterpolants, 0 QuantifiedInterpolants, 858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 58/58 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 21.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.7ms, PartialOrderReductionTime: 11.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2801.2ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.3ms, PartialOrderReductionTime: 2239.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.3ms SsaConstructionTime, 93.1ms SatisfiabilityAnalysisTime, 364.9ms InterpolantComputationTime, 683 NumberOfCodeBlocks, 683 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 672 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 58/58 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-07 04:53:32,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2021-08-07 04:53:32,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2021-08-07 04:53:32,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-08-07 04:53:33,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...