/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:40:45,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:40:45,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:40:45,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:40:46,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 11:40:46,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 11:40:46,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 11:40:46,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-21 11:40:46,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:40:46,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:40:46,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:40:46,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:40:46,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:40:46,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:40:46,033 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:40:46,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:40:46,034 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:40:46,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:40:46,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:40:46,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:40:46,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:40:46,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:40:46,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:40:46,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:40:46,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:40:46,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:40:46,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:40:46,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:40:46,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:40:46,298 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:40:46,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-08-21 11:40:46,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b70a48d/33652850a4224d8792c88898d70f20b0/FLAG98cc1f7ab [2021-08-21 11:40:46,871 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:40:46,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-08-21 11:40:46,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b70a48d/33652850a4224d8792c88898d70f20b0/FLAG98cc1f7ab [2021-08-21 11:40:47,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b70a48d/33652850a4224d8792c88898d70f20b0 [2021-08-21 11:40:47,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:40:47,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:40:47,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:40:47,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:40:47,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:40:47,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197fea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47, skipping insertion in model container [2021-08-21 11:40:47,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:40:47,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:40:47,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-08-21 11:40:47,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:40:47,668 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:40:47,681 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-08-21 11:40:47,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:40:47,746 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:40:47,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47 WrapperNode [2021-08-21 11:40:47,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:40:47,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:40:47,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:40:47,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:40:47,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:40:47,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:40:47,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:40:47,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:40:47,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:40:47,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:40:47,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:40:47,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:40:47,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (1/1) ... [2021-08-21 11:40:47,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:40:47,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:40:47,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:40:47,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:40:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 11:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:40:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 11:40:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 11:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 11:40:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 11:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 11:40:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 11:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 11:40:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:40:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:40:47,907 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:40:48,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:40:48,197 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 11:40:48,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:40:48 BoogieIcfgContainer [2021-08-21 11:40:48,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:40:48,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:40:48,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:40:48,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:40:48,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:40:47" (1/3) ... [2021-08-21 11:40:48,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9434d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:40:48, skipping insertion in model container [2021-08-21 11:40:48,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:40:47" (2/3) ... [2021-08-21 11:40:48,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9434d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:40:48, skipping insertion in model container [2021-08-21 11:40:48,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:40:48" (3/3) ... [2021-08-21 11:40:48,204 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2021-08-21 11:40:48,207 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:40:48,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:40:48,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 11:40:48,207 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:40:48,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,236 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,236 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,237 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,238 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,239 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,240 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,241 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,243 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,243 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,252 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,253 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:40:48,255 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 11:40:48,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:40:48,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:40:48,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 11:40:48,309 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-08-21 11:40:48,497 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-21 11:40:48,540 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:48,541 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:48,541 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:48,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:48,545 INFO L82 PathProgramCache]: Analyzing trace with hash -2060294953, now seen corresponding path program 1 times [2021-08-21 11:40:48,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:48,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849800976] [2021-08-21 11:40:48,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:48,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:48,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:48,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849800976] [2021-08-21 11:40:48,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849800976] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:48,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:48,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:40:48,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146256575] [2021-08-21 11:40:48,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:40:48,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:48,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:40:48,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:40:48,936 INFO L87 Difference]: Start difference. First operand has 5559 states, 5558 states have (on average 3.4938826916156893) internal successors, (19419), 5558 states have internal predecessors, (19419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:49,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:49,254 INFO L93 Difference]: Finished difference Result 6679 states and 22703 transitions. [2021-08-21 11:40:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:40:49,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-08-21 11:40:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:49,295 INFO L225 Difference]: With dead ends: 6679 [2021-08-21 11:40:49,295 INFO L226 Difference]: Without dead ends: 4964 [2021-08-21 11:40:49,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:40:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4964 states. [2021-08-21 11:40:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4964 to 4964. [2021-08-21 11:40:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4963 states have (on average 3.4009671569615154) internal successors, (16879), 4963 states have internal predecessors, (16879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 16879 transitions. [2021-08-21 11:40:49,558 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 16879 transitions. Word has length 49 [2021-08-21 11:40:49,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:49,560 INFO L470 AbstractCegarLoop]: Abstraction has 4964 states and 16879 transitions. [2021-08-21 11:40:49,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 16879 transitions. [2021-08-21 11:40:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-21 11:40:49,573 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:49,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:49,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:40:49,578 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:49,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:49,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1811858570, now seen corresponding path program 1 times [2021-08-21 11:40:49,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:49,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168134738] [2021-08-21 11:40:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:49,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:49,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:49,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:49,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168134738] [2021-08-21 11:40:49,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168134738] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:49,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:49,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:49,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693536872] [2021-08-21 11:40:49,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:49,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:49,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:49,790 INFO L87 Difference]: Start difference. First operand 4964 states and 16879 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:50,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:50,105 INFO L93 Difference]: Finished difference Result 7932 states and 26514 transitions. [2021-08-21 11:40:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 11:40:50,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-08-21 11:40:50,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:50,132 INFO L225 Difference]: With dead ends: 7932 [2021-08-21 11:40:50,132 INFO L226 Difference]: Without dead ends: 5272 [2021-08-21 11:40:50,133 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 189.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:40:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2021-08-21 11:40:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 4432. [2021-08-21 11:40:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 4431 states have (on average 3.314601670051907) internal successors, (14687), 4431 states have internal predecessors, (14687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 14687 transitions. [2021-08-21 11:40:50,314 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 14687 transitions. Word has length 51 [2021-08-21 11:40:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:50,314 INFO L470 AbstractCegarLoop]: Abstraction has 4432 states and 14687 transitions. [2021-08-21 11:40:50,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:50,315 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 14687 transitions. [2021-08-21 11:40:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-21 11:40:50,324 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:50,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:50,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:40:50,324 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:50,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1578794731, now seen corresponding path program 1 times [2021-08-21 11:40:50,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:50,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565145910] [2021-08-21 11:40:50,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:50,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:50,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:50,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565145910] [2021-08-21 11:40:50,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565145910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:50,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:50,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:50,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147004008] [2021-08-21 11:40:50,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:50,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:50,482 INFO L87 Difference]: Start difference. First operand 4432 states and 14687 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-08-21 11:40:50,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:50,878 INFO L93 Difference]: Finished difference Result 6876 states and 22454 transitions. [2021-08-21 11:40:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-21 11:40:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-08-21 11:40:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:50,907 INFO L225 Difference]: With dead ends: 6876 [2021-08-21 11:40:50,907 INFO L226 Difference]: Without dead ends: 5392 [2021-08-21 11:40:50,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 287.2ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-21 11:40:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2021-08-21 11:40:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 4488. [2021-08-21 11:40:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 4487 states have (on average 3.298417650991754) internal successors, (14800), 4487 states have internal predecessors, (14800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 14800 transitions. [2021-08-21 11:40:51,080 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 14800 transitions. Word has length 53 [2021-08-21 11:40:51,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:51,081 INFO L470 AbstractCegarLoop]: Abstraction has 4488 states and 14800 transitions. [2021-08-21 11:40:51,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-08-21 11:40:51,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 14800 transitions. [2021-08-21 11:40:51,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-21 11:40:51,089 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:51,089 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:51,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:40:51,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:51,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:51,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1330125243, now seen corresponding path program 2 times [2021-08-21 11:40:51,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:51,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526390068] [2021-08-21 11:40:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:51,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:51,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:51,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526390068] [2021-08-21 11:40:51,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526390068] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:51,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:51,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 11:40:51,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896938449] [2021-08-21 11:40:51,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 11:40:51,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:51,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 11:40:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:40:51,201 INFO L87 Difference]: Start difference. First operand 4488 states and 14800 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 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) [2021-08-21 11:40:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:51,356 INFO L93 Difference]: Finished difference Result 6466 states and 21084 transitions. [2021-08-21 11:40:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:40:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-08-21 11:40:51,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:51,374 INFO L225 Difference]: With dead ends: 6466 [2021-08-21 11:40:51,374 INFO L226 Difference]: Without dead ends: 3526 [2021-08-21 11:40:51,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 112.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:40:51,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2021-08-21 11:40:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3046. [2021-08-21 11:40:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 3.1789819376026274) internal successors, (9680), 3045 states have internal predecessors, (9680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 9680 transitions. [2021-08-21 11:40:51,492 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 9680 transitions. Word has length 53 [2021-08-21 11:40:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:51,493 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 9680 transitions. [2021-08-21 11:40:51,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 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) [2021-08-21 11:40:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 9680 transitions. [2021-08-21 11:40:51,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-08-21 11:40:51,500 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:51,500 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:51,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:40:51,501 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:51,501 INFO L82 PathProgramCache]: Analyzing trace with hash 781514458, now seen corresponding path program 1 times [2021-08-21 11:40:51,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:51,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837542537] [2021-08-21 11:40:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:51,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:51,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:51,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837542537] [2021-08-21 11:40:51,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837542537] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:51,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:51,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:40:51,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946576294] [2021-08-21 11:40:51,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:40:51,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:40:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:40:51,613 INFO L87 Difference]: Start difference. First operand 3046 states and 9680 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:51,698 INFO L93 Difference]: Finished difference Result 3833 states and 12056 transitions. [2021-08-21 11:40:51,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:40:51,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-08-21 11:40:51,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:51,706 INFO L225 Difference]: With dead ends: 3833 [2021-08-21 11:40:51,706 INFO L226 Difference]: Without dead ends: 2817 [2021-08-21 11:40:51,707 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:40:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2021-08-21 11:40:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2021-08-21 11:40:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 3.1352982954545454) internal successors, (8829), 2816 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8829 transitions. [2021-08-21 11:40:51,764 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8829 transitions. Word has length 56 [2021-08-21 11:40:51,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:51,765 INFO L470 AbstractCegarLoop]: Abstraction has 2817 states and 8829 transitions. [2021-08-21 11:40:51,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8829 transitions. [2021-08-21 11:40:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 11:40:51,770 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:51,770 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:51,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 11:40:51,770 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:51,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1508462331, now seen corresponding path program 1 times [2021-08-21 11:40:51,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:51,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065296135] [2021-08-21 11:40:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:51,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:51,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:51,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065296135] [2021-08-21 11:40:51,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065296135] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:51,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:51,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:51,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297353987] [2021-08-21 11:40:51,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:51,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:51,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:51,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:51,872 INFO L87 Difference]: Start difference. First operand 2817 states and 8829 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:51,988 INFO L93 Difference]: Finished difference Result 3045 states and 9335 transitions. [2021-08-21 11:40:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:40:51,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-08-21 11:40:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:51,995 INFO L225 Difference]: With dead ends: 3045 [2021-08-21 11:40:51,995 INFO L226 Difference]: Without dead ends: 2193 [2021-08-21 11:40:51,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 103.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 11:40:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2021-08-21 11:40:52,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2021-08-21 11:40:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2192 states have (on average 3.0182481751824817) internal successors, (6616), 2192 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 6616 transitions. [2021-08-21 11:40:52,045 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 6616 transitions. Word has length 57 [2021-08-21 11:40:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:52,045 INFO L470 AbstractCegarLoop]: Abstraction has 2193 states and 6616 transitions. [2021-08-21 11:40:52,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 6616 transitions. [2021-08-21 11:40:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 11:40:52,050 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:52,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:52,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 11:40:52,051 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:52,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1423598682, now seen corresponding path program 1 times [2021-08-21 11:40:52,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:52,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546315015] [2021-08-21 11:40:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:52,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:52,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:52,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546315015] [2021-08-21 11:40:52,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546315015] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:52,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:52,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:40:52,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192340068] [2021-08-21 11:40:52,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:40:52,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:52,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:40:52,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:40:52,122 INFO L87 Difference]: Start difference. First operand 2193 states and 6616 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2021-08-21 11:40:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:52,194 INFO L93 Difference]: Finished difference Result 2996 states and 8894 transitions. [2021-08-21 11:40:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 11:40:52,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) Word has length 59 [2021-08-21 11:40:52,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:52,198 INFO L225 Difference]: With dead ends: 2996 [2021-08-21 11:40:52,198 INFO L226 Difference]: Without dead ends: 1669 [2021-08-21 11:40:52,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:40:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-08-21 11:40:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1507. [2021-08-21 11:40:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 2.8227091633466137) internal successors, (4251), 1506 states have internal predecessors, (4251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4251 transitions. [2021-08-21 11:40:52,234 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4251 transitions. Word has length 59 [2021-08-21 11:40:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:52,234 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 4251 transitions. [2021-08-21 11:40:52,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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) [2021-08-21 11:40:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4251 transitions. [2021-08-21 11:40:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 11:40:52,238 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:40:52,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:40:52,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 11:40:52,238 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 11:40:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:40:52,238 INFO L82 PathProgramCache]: Analyzing trace with hash -184563028, now seen corresponding path program 1 times [2021-08-21 11:40:52,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:40:52,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919360215] [2021-08-21 11:40:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:40:52,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:40:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:40:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:40:52,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:40:52,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919360215] [2021-08-21 11:40:52,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919360215] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:40:52,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:40:52,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 11:40:52,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428678162] [2021-08-21 11:40:52,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 11:40:52,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:40:52,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 11:40:52,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:40:52,343 INFO L87 Difference]: Start difference. First operand 1507 states and 4251 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2021-08-21 11:40:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:40:52,411 INFO L93 Difference]: Finished difference Result 1075 states and 2928 transitions. [2021-08-21 11:40:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 11:40:52,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) Word has length 59 [2021-08-21 11:40:52,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:40:52,412 INFO L225 Difference]: With dead ends: 1075 [2021-08-21 11:40:52,412 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 11:40:52,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-21 11:40:52,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 11:40:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 11:40:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:40:52,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 11:40:52,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-08-21 11:40:52,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:40:52,413 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 11:40:52,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2021-08-21 11:40:52,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 11:40:52,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 11:40:52,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:40:52,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:40:52,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:40:52,415 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 11:40:52,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 11:40:52,418 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:40:52,419 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:40:52,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:40:52 BasicIcfg [2021-08-21 11:40:52,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:40:52,421 INFO L168 Benchmark]: Toolchain (without parser) took 5067.57 ms. Allocated memory was 194.0 MB in the beginning and 740.3 MB in the end (delta: 546.3 MB). Free memory was 156.7 MB in the beginning and 444.4 MB in the end (delta: -287.7 MB). Peak memory consumption was 260.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,421 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 194.0 MB. Free memory is still 174.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:40:52,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.09 ms. Allocated memory is still 194.0 MB. Free memory was 156.5 MB in the beginning and 167.7 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 194.0 MB. Free memory was 167.3 MB in the beginning and 165.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,422 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 ms. Allocated memory is still 194.0 MB. Free memory was 165.6 MB in the beginning and 164.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,422 INFO L168 Benchmark]: RCFGBuilder took 375.11 ms. Allocated memory is still 194.0 MB. Free memory was 164.2 MB in the beginning and 140.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,423 INFO L168 Benchmark]: TraceAbstraction took 4219.94 ms. Allocated memory was 194.0 MB in the beginning and 740.3 MB in the end (delta: 546.3 MB). Free memory was 140.1 MB in the beginning and 444.4 MB in the end (delta: -304.3 MB). Peak memory consumption was 242.8 MB. Max. memory is 8.0 GB. [2021-08-21 11:40:52,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 194.0 MB. Free memory is still 174.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 389.09 ms. Allocated memory is still 194.0 MB. Free memory was 156.5 MB in the beginning and 167.7 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 50.18 ms. Allocated memory is still 194.0 MB. Free memory was 167.3 MB in the beginning and 165.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.13 ms. Allocated memory is still 194.0 MB. Free memory was 165.6 MB in the beginning and 164.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 375.11 ms. Allocated memory is still 194.0 MB. Free memory was 164.2 MB in the beginning and 140.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4219.94 ms. Allocated memory was 194.0 MB in the beginning and 740.3 MB in the end (delta: 546.3 MB). Free memory was 140.1 MB in the beginning and 444.4 MB in the end (delta: -304.3 MB). Peak memory consumption was 242.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4128.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 92.8ms, AutomataDifference: 1695.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 199.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 842 SDtfs, 1481 SDslu, 2803 SDs, 0 SdLazy, 304 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 276.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1024.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 866.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 2386 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.4ms SsaConstructionTime, 171.5ms SatisfiabilityAnalysisTime, 912.2ms InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 11:40:52,449 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...