/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/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:42:46,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:42:46,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:42:46,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:42:46,890 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 11:42:46,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:42:46,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:42:46,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:42:46,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:42:46,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:42:46,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:42:46,924 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:42:46,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:42:46,925 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:42:46,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:42:46,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:42:46,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:42:46,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:42:46,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:42:46,928 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:42:46,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:42:46,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:42:47,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:42:47,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:42:47,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:42:47,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:42:47,246 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:42:47,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-08-21 11:42:47,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f30ae0ff8/56029baf151f40d194f524a205ad1374/FLAG06f04bac5 [2021-08-21 11:42:47,904 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:42:47,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-08-21 11:42:47,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f30ae0ff8/56029baf151f40d194f524a205ad1374/FLAG06f04bac5 [2021-08-21 11:42:48,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f30ae0ff8/56029baf151f40d194f524a205ad1374 [2021-08-21 11:42:48,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:42:48,322 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:42:48,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:42:48,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:42:48,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:42:48,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79eb321b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48, skipping insertion in model container [2021-08-21 11:42:48,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:42:48,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:42:48,488 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/safe027_pso.oepc.i[950,963] [2021-08-21 11:42:48,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:42:48,691 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:42:48,706 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/safe027_pso.oepc.i[950,963] [2021-08-21 11:42:48,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:42:48,767 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:42:48,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48 WrapperNode [2021-08-21 11:42:48,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:42:48,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:42:48,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:42:48,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:42:48,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:42:48,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:42:48,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:42:48,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:42:48,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:42:48,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:42:48,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:42:48,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:42:48,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (1/1) ... [2021-08-21 11:42:48,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:42:48,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:42:48,882 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 11:42:48,907 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 11:42:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:42:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 11:42:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:42:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:42:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 11:42:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 11:42:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 11:42:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 11:42:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 11:42:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 11:42:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-21 11:42:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-21 11:42:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:42:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 11:42:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:42:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:42:48,936 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 11:42:49,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:42:49,354 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 11:42:49,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:42:49 BoogieIcfgContainer [2021-08-21 11:42:49,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:42:49,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:42:49,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:42:49,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:42:49,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:42:48" (1/3) ... [2021-08-21 11:42:49,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f956a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:42:49, skipping insertion in model container [2021-08-21 11:42:49,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:42:48" (2/3) ... [2021-08-21 11:42:49,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f956a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:42:49, skipping insertion in model container [2021-08-21 11:42:49,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:42:49" (3/3) ... [2021-08-21 11:42:49,365 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-08-21 11:42:49,372 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:42:49,372 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:42:49,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 11:42:49,372 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:42:49,419 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,419 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,420 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,422 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,422 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,423 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,425 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,428 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,428 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,428 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,428 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,433 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,434 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,434 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,434 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,435 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,438 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,438 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,439 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,447 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,450 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,450 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,452 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,453 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,453 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:42:49,455 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 11:42:49,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:42:49,512 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 11:42:49,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-21 11:42:49,528 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 110 places, 99 transitions, 218 flow [2021-08-21 11:42:50,982 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 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 11:42:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 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 11:42:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 11:42:51,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:42:51,225 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 11:42:51,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:42:51,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:42:51,232 INFO L82 PathProgramCache]: Analyzing trace with hash -368205386, now seen corresponding path program 1 times [2021-08-21 11:42:51,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:42:51,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230187190] [2021-08-21 11:42:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:42:51,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:42:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:42:51,757 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 11:42:51,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:42:51,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230187190] [2021-08-21 11:42:51,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230187190] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:42:51,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:42:51,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:42:51,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044895534] [2021-08-21 11:42:51,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:42:51,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:42:51,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:42:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:42:51,845 INFO L87 Difference]: Start difference. First operand has 28884 states, 28883 states have (on average 4.2975452688432645) internal successors, (124126), 28883 states have internal predecessors, (124126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 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 11:42:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:42:52,661 INFO L93 Difference]: Finished difference Result 32916 states and 138334 transitions. [2021-08-21 11:42:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:42:52,663 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 11:42:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:42:53,049 INFO L225 Difference]: With dead ends: 32916 [2021-08-21 11:42:53,049 INFO L226 Difference]: Without dead ends: 24096 [2021-08-21 11:42:53,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 114.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 11:42:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2021-08-21 11:42:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 24096. [2021-08-21 11:42:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24096 states, 24095 states have (on average 4.189831915335132) internal successors, (100954), 24095 states have internal predecessors, (100954), 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 11:42:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24096 states to 24096 states and 100954 transitions. [2021-08-21 11:42:54,583 INFO L78 Accepts]: Start accepts. Automaton has 24096 states and 100954 transitions. Word has length 57 [2021-08-21 11:42:54,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:42:54,584 INFO L470 AbstractCegarLoop]: Abstraction has 24096 states and 100954 transitions. [2021-08-21 11:42:54,584 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 11:42:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 24096 states and 100954 transitions. [2021-08-21 11:42:54,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 11:42:54,644 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:42:54,644 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 11:42:54,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:42:54,645 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:42:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:42:54,646 INFO L82 PathProgramCache]: Analyzing trace with hash 156738455, now seen corresponding path program 1 times [2021-08-21 11:42:54,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:42:54,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547398100] [2021-08-21 11:42:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:42:54,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:42:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:42:54,868 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 11:42:54,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:42:54,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547398100] [2021-08-21 11:42:54,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547398100] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:42:54,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:42:54,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:42:54,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087821913] [2021-08-21 11:42:54,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:42:54,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:42:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:42:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:42:54,873 INFO L87 Difference]: Start difference. First operand 24096 states and 100954 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 11:42:55,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:42:55,567 INFO L93 Difference]: Finished difference Result 31802 states and 133015 transitions. [2021-08-21 11:42:55,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-21 11:42:55,568 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 11:42:55,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:42:55,744 INFO L225 Difference]: With dead ends: 31802 [2021-08-21 11:42:55,744 INFO L226 Difference]: Without dead ends: 26042 [2021-08-21 11:42:55,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 258.8ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-21 11:42:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2021-08-21 11:42:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 26042. [2021-08-21 11:42:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26042 states, 26041 states have (on average 4.193195345800852) internal successors, (109195), 26041 states have internal predecessors, (109195), 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 11:42:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26042 states to 26042 states and 109195 transitions. [2021-08-21 11:42:56,919 INFO L78 Accepts]: Start accepts. Automaton has 26042 states and 109195 transitions. Word has length 59 [2021-08-21 11:42:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:42:56,920 INFO L470 AbstractCegarLoop]: Abstraction has 26042 states and 109195 transitions. [2021-08-21 11:42:56,920 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 11:42:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 26042 states and 109195 transitions. [2021-08-21 11:42:56,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-21 11:42:56,978 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:42:56,978 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, 1] [2021-08-21 11:42:56,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:42:56,979 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:42:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:42:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash 634081114, now seen corresponding path program 1 times [2021-08-21 11:42:56,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:42:56,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542474674] [2021-08-21 11:42:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:42:56,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:42:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:42:57,117 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 11:42:57,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:42:57,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542474674] [2021-08-21 11:42:57,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542474674] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:42:57,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:42:57,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 11:42:57,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221418897] [2021-08-21 11:42:57,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 11:42:57,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:42:57,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 11:42:57,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:42:57,120 INFO L87 Difference]: Start difference. First operand 26042 states and 109195 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 11:42:58,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:42:58,224 INFO L93 Difference]: Finished difference Result 35678 states and 148096 transitions. [2021-08-21 11:42:58,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:42:58,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 60 [2021-08-21 11:42:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:42:58,433 INFO L225 Difference]: With dead ends: 35678 [2021-08-21 11:42:58,434 INFO L226 Difference]: Without dead ends: 17726 [2021-08-21 11:42:58,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:42:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-08-21 11:42:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17726. [2021-08-21 11:42:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17726 states, 17725 states have (on average 4.085077574047955) internal successors, (72408), 17725 states have internal predecessors, (72408), 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 11:42:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17726 states to 17726 states and 72408 transitions. [2021-08-21 11:42:59,230 INFO L78 Accepts]: Start accepts. Automaton has 17726 states and 72408 transitions. Word has length 60 [2021-08-21 11:42:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:42:59,230 INFO L470 AbstractCegarLoop]: Abstraction has 17726 states and 72408 transitions. [2021-08-21 11:42:59,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 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 11:42:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 17726 states and 72408 transitions. [2021-08-21 11:42:59,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-21 11:42:59,260 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:42:59,260 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, 1, 1] [2021-08-21 11:42:59,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:42:59,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:42:59,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:42:59,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1551407626, now seen corresponding path program 1 times [2021-08-21 11:42:59,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:42:59,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760349338] [2021-08-21 11:42:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:42:59,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:42:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:42:59,570 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 11:42:59,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:42:59,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760349338] [2021-08-21 11:42:59,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760349338] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:42:59,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:42:59,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:42:59,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596231291] [2021-08-21 11:42:59,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:42:59,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:42:59,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:42:59,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:42:59,573 INFO L87 Difference]: Start difference. First operand 17726 states and 72408 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-08-21 11:42:59,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:42:59,870 INFO L93 Difference]: Finished difference Result 19646 states and 79744 transitions. [2021-08-21 11:42:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:42:59,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) Word has length 61 [2021-08-21 11:42:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:42:59,956 INFO L225 Difference]: With dead ends: 19646 [2021-08-21 11:42:59,957 INFO L226 Difference]: Without dead ends: 16286 [2021-08-21 11:42:59,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 100.0ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 11:42:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16286 states. [2021-08-21 11:43:00,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16286 to 16286. [2021-08-21 11:43:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16286 states, 16285 states have (on average 4.058704329137242) internal successors, (66096), 16285 states have internal predecessors, (66096), 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 11:43:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16286 states to 16286 states and 66096 transitions. [2021-08-21 11:43:00,711 INFO L78 Accepts]: Start accepts. Automaton has 16286 states and 66096 transitions. Word has length 61 [2021-08-21 11:43:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:00,711 INFO L470 AbstractCegarLoop]: Abstraction has 16286 states and 66096 transitions. [2021-08-21 11:43:00,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-08-21 11:43:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 16286 states and 66096 transitions. [2021-08-21 11:43:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-21 11:43:00,869 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:00,870 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, 1, 1, 1, 1] [2021-08-21 11:43:00,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:43:00,870 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:00,871 INFO L82 PathProgramCache]: Analyzing trace with hash -444134379, now seen corresponding path program 1 times [2021-08-21 11:43:00,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:00,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310725528] [2021-08-21 11:43:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:00,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:00,994 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 11:43:00,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:00,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310725528] [2021-08-21 11:43:00,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310725528] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:00,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:00,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:43:00,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970059564] [2021-08-21 11:43:00,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:43:00,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:00,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:43:00,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:43:00,996 INFO L87 Difference]: Start difference. First operand 16286 states and 66096 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2021-08-21 11:43:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:01,286 INFO L93 Difference]: Finished difference Result 22606 states and 91492 transitions. [2021-08-21 11:43:01,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:43:01,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) Word has length 63 [2021-08-21 11:43:01,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:01,326 INFO L225 Difference]: With dead ends: 22606 [2021-08-21 11:43:01,326 INFO L226 Difference]: Without dead ends: 11161 [2021-08-21 11:43:01,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 119.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 11:43:01,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-08-21 11:43:01,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 11161. [2021-08-21 11:43:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11161 states, 11160 states have (on average 4.009498207885304) internal successors, (44746), 11160 states have internal predecessors, (44746), 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 11:43:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11161 states to 11161 states and 44746 transitions. [2021-08-21 11:43:01,862 INFO L78 Accepts]: Start accepts. Automaton has 11161 states and 44746 transitions. Word has length 63 [2021-08-21 11:43:01,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:01,862 INFO L470 AbstractCegarLoop]: Abstraction has 11161 states and 44746 transitions. [2021-08-21 11:43:01,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2021-08-21 11:43:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 11161 states and 44746 transitions. [2021-08-21 11:43:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-21 11:43:01,886 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:01,887 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, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:01,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 11:43:01,887 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:01,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1825517136, now seen corresponding path program 1 times [2021-08-21 11:43:01,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:01,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753046295] [2021-08-21 11:43:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:01,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:02,045 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 11:43:02,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:02,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753046295] [2021-08-21 11:43:02,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753046295] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:02,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:02,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:43:02,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454429860] [2021-08-21 11:43:02,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:43:02,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:02,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:43:02,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:43:02,048 INFO L87 Difference]: Start difference. First operand 11161 states and 44746 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 11:43:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:02,378 INFO L93 Difference]: Finished difference Result 14913 states and 59378 transitions. [2021-08-21 11:43:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:43:02,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2021-08-21 11:43:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:02,413 INFO L225 Difference]: With dead ends: 14913 [2021-08-21 11:43:02,413 INFO L226 Difference]: Without dead ends: 10817 [2021-08-21 11:43:02,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:43:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-08-21 11:43:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2021-08-21 11:43:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 10816 states have (on average 3.9927884615384617) internal successors, (43186), 10816 states have internal predecessors, (43186), 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 11:43:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 43186 transitions. [2021-08-21 11:43:02,721 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 43186 transitions. Word has length 65 [2021-08-21 11:43:02,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:02,722 INFO L470 AbstractCegarLoop]: Abstraction has 10817 states and 43186 transitions. [2021-08-21 11:43:02,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 11:43:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 43186 transitions. [2021-08-21 11:43:02,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-21 11:43:02,839 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:02,839 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, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:02,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 11:43:02,839 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:02,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:02,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1633146258, now seen corresponding path program 1 times [2021-08-21 11:43:02,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:02,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218713703] [2021-08-21 11:43:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:02,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:02,940 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 11:43:02,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:02,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218713703] [2021-08-21 11:43:02,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218713703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:02,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:02,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:43:02,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514929641] [2021-08-21 11:43:02,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:43:02,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:43:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:43:02,942 INFO L87 Difference]: Start difference. First operand 10817 states and 43186 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 11:43:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:03,128 INFO L93 Difference]: Finished difference Result 13241 states and 52158 transitions. [2021-08-21 11:43:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:43:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66 [2021-08-21 11:43:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:03,158 INFO L225 Difference]: With dead ends: 13241 [2021-08-21 11:43:03,158 INFO L226 Difference]: Without dead ends: 9401 [2021-08-21 11:43:03,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 78.2ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 11:43:03,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2021-08-21 11:43:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2021-08-21 11:43:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 3.923191489361702) internal successors, (36878), 9400 states have internal predecessors, (36878), 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 11:43:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 36878 transitions. [2021-08-21 11:43:03,527 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 36878 transitions. Word has length 66 [2021-08-21 11:43:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:03,527 INFO L470 AbstractCegarLoop]: Abstraction has 9401 states and 36878 transitions. [2021-08-21 11:43:03,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 11:43:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 36878 transitions. [2021-08-21 11:43:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-21 11:43:03,544 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:03,544 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:03,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 11:43:03,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash -2034022899, now seen corresponding path program 1 times [2021-08-21 11:43:03,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:03,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177938606] [2021-08-21 11:43:03,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:03,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:03,665 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 11:43:03,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:03,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177938606] [2021-08-21 11:43:03,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177938606] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:03,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:03,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 11:43:03,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395851922] [2021-08-21 11:43:03,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 11:43:03,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:03,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 11:43:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:43:03,668 INFO L87 Difference]: Start difference. First operand 9401 states and 36878 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 11:43:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:03,860 INFO L93 Difference]: Finished difference Result 9734 states and 37430 transitions. [2021-08-21 11:43:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:43:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2021-08-21 11:43:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:03,888 INFO L225 Difference]: With dead ends: 9734 [2021-08-21 11:43:03,888 INFO L226 Difference]: Without dead ends: 6854 [2021-08-21 11:43:03,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 85.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:43:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2021-08-21 11:43:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6854. [2021-08-21 11:43:04,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6854 states, 6853 states have (on average 3.7970232015175833) internal successors, (26021), 6853 states have internal predecessors, (26021), 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 11:43:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6854 states to 6854 states and 26021 transitions. [2021-08-21 11:43:04,167 INFO L78 Accepts]: Start accepts. Automaton has 6854 states and 26021 transitions. Word has length 67 [2021-08-21 11:43:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:04,167 INFO L470 AbstractCegarLoop]: Abstraction has 6854 states and 26021 transitions. [2021-08-21 11:43:04,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 11:43:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6854 states and 26021 transitions. [2021-08-21 11:43:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-21 11:43:04,181 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:04,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:04,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 11:43:04,182 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:04,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:04,182 INFO L82 PathProgramCache]: Analyzing trace with hash -397463314, now seen corresponding path program 1 times [2021-08-21 11:43:04,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:04,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734191719] [2021-08-21 11:43:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:04,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:04,316 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 11:43:04,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:04,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734191719] [2021-08-21 11:43:04,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734191719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:04,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:04,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 11:43:04,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627317304] [2021-08-21 11:43:04,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 11:43:04,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:04,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 11:43:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-21 11:43:04,318 INFO L87 Difference]: Start difference. First operand 6854 states and 26021 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 11:43:04,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:04,526 INFO L93 Difference]: Finished difference Result 5936 states and 22160 transitions. [2021-08-21 11:43:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-21 11:43:04,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2021-08-21 11:43:04,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:04,544 INFO L225 Difference]: With dead ends: 5936 [2021-08-21 11:43:04,545 INFO L226 Difference]: Without dead ends: 4532 [2021-08-21 11:43:04,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 112.8ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-08-21 11:43:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2021-08-21 11:43:04,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4532. [2021-08-21 11:43:04,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 4531 states have (on average 3.693003751931141) internal successors, (16733), 4531 states have internal predecessors, (16733), 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 11:43:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 16733 transitions. [2021-08-21 11:43:04,680 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 16733 transitions. Word has length 69 [2021-08-21 11:43:04,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:04,680 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 16733 transitions. [2021-08-21 11:43:04,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 11:43:04,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 16733 transitions. [2021-08-21 11:43:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 11:43:04,689 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:04,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:04,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 11:43:04,690 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:04,690 INFO L82 PathProgramCache]: Analyzing trace with hash 981409743, now seen corresponding path program 1 times [2021-08-21 11:43:04,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:04,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217484998] [2021-08-21 11:43:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:04,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:04,840 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 11:43:04,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:04,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217484998] [2021-08-21 11:43:04,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217484998] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:04,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:04,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:43:04,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789424201] [2021-08-21 11:43:04,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:43:04,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:04,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:43:04,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:43:04,844 INFO L87 Difference]: Start difference. First operand 4532 states and 16733 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2021-08-21 11:43:04,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:04,990 INFO L93 Difference]: Finished difference Result 6605 states and 24478 transitions. [2021-08-21 11:43:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 11:43:04,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) Word has length 71 [2021-08-21 11:43:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:05,005 INFO L225 Difference]: With dead ends: 6605 [2021-08-21 11:43:05,005 INFO L226 Difference]: Without dead ends: 4116 [2021-08-21 11:43:05,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:43:05,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2021-08-21 11:43:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 3540. [2021-08-21 11:43:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3539 states have (on average 3.631816897428652) internal successors, (12853), 3539 states have internal predecessors, (12853), 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 11:43:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 12853 transitions. [2021-08-21 11:43:05,173 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 12853 transitions. Word has length 71 [2021-08-21 11:43:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:05,174 INFO L470 AbstractCegarLoop]: Abstraction has 3540 states and 12853 transitions. [2021-08-21 11:43:05,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2021-08-21 11:43:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 12853 transitions. [2021-08-21 11:43:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 11:43:05,182 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:43:05,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:43:05,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-21 11:43:05,183 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 11:43:05,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:43:05,183 INFO L82 PathProgramCache]: Analyzing trace with hash -945629203, now seen corresponding path program 2 times [2021-08-21 11:43:05,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:43:05,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369802954] [2021-08-21 11:43:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:43:05,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:43:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:43:05,317 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 11:43:05,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:43:05,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369802954] [2021-08-21 11:43:05,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369802954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:43:05,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:43:05,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 11:43:05,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692568434] [2021-08-21 11:43:05,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 11:43:05,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:43:05,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 11:43:05,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 11:43:05,321 INFO L87 Difference]: Start difference. First operand 3540 states and 12853 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2021-08-21 11:43:05,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:43:05,423 INFO L93 Difference]: Finished difference Result 3378 states and 12259 transitions. [2021-08-21 11:43:05,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 11:43:05,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) Word has length 71 [2021-08-21 11:43:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:43:05,424 INFO L225 Difference]: With dead ends: 3378 [2021-08-21 11:43:05,424 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 11:43:05,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:43:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 11:43:05,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 11:43:05,425 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 11:43:05,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 11:43:05,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-08-21 11:43:05,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:43:05,426 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 11:43:05,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 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) [2021-08-21 11:43:05,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 11:43:05,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 11:43:05,428 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:43:05,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:43:05,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:43:05,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 11:43:05,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 11:43:05,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-21 11:43:05,437 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:43:05,437 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:43:05,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:43:05 BasicIcfg [2021-08-21 11:43:05,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:43:05,444 INFO L168 Benchmark]: Toolchain (without parser) took 17118.17 ms. Allocated memory was 204.5 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 168.2 MB in the beginning and 4.7 GB in the end (delta: -4.5 GB). Peak memory consumption was 928.9 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,444 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 204.5 MB. Free memory is still 186.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:43:05,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.24 ms. Allocated memory is still 204.5 MB. Free memory was 168.0 MB in the beginning and 177.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.16 ms. Allocated memory is still 204.5 MB. Free memory was 177.9 MB in the beginning and 175.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,446 INFO L168 Benchmark]: Boogie Preprocessor took 21.40 ms. Allocated memory is still 204.5 MB. Free memory was 175.8 MB in the beginning and 174.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,446 INFO L168 Benchmark]: RCFGBuilder took 524.08 ms. Allocated memory is still 204.5 MB. Free memory was 174.5 MB in the beginning and 148.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,446 INFO L168 Benchmark]: TraceAbstraction took 16080.73 ms. Allocated memory was 204.5 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 148.3 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 909.2 MB. Max. memory is 8.0 GB. [2021-08-21 11:43:05,449 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 204.5 MB. Free memory is still 186.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 445.24 ms. Allocated memory is still 204.5 MB. Free memory was 168.0 MB in the beginning and 177.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.16 ms. Allocated memory is still 204.5 MB. Free memory was 177.9 MB in the beginning and 175.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.40 ms. Allocated memory is still 204.5 MB. Free memory was 175.8 MB in the beginning and 174.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 524.08 ms. Allocated memory is still 204.5 MB. Free memory was 174.5 MB in the beginning and 148.5 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16080.73 ms. Allocated memory was 204.5 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 148.3 MB in the beginning and 4.7 GB in the end (delta: -4.6 GB). Peak memory consumption was 909.2 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 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 15932.5ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 732.8ms, AutomataDifference: 5489.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1469.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1363 SDtfs, 2396 SDslu, 4656 SDs, 0 SdLazy, 546 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 443.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1269.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred in iteration=0, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6031.0ms AutomataMinimizationTime, 11 MinimizatonAttempts, 576 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 50.9ms SsaConstructionTime, 276.3ms SatisfiabilityAnalysisTime, 1623.7ms InterpolantComputationTime, 709 NumberOfCodeBlocks, 709 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 3352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 11:43:05,484 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...