/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:17:39,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:17:39,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:17:39,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:17:39,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:17:39,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:17:39,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:17:39,806 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-Delay.epf [2021-07-14 00:17:39,838 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:17:39,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:17:39,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:17:39,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:17:39,840 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:17:39,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:17:39,840 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:17:39,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:17:39,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:17:39,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:17:39,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:17:39,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:17:39,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:17:39,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:17:39,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:17:39,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:17:39,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:17:39,843 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:17:39,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:17:40,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:17:40,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:17:40,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:17:40,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:17:40,179 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:17:40,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-07-14 00:17:40,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c30cda95/dd73af466d4a47f98e161a7bbccde2e4/FLAGbee71395f [2021-07-14 00:17:40,802 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:17:40,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-07-14 00:17:40,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c30cda95/dd73af466d4a47f98e161a7bbccde2e4/FLAGbee71395f [2021-07-14 00:17:41,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c30cda95/dd73af466d4a47f98e161a7bbccde2e4 [2021-07-14 00:17:41,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:17:41,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:17:41,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:17:41,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:17:41,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:17:41,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47af7cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41, skipping insertion in model container [2021-07-14 00:17:41,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:17:41,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:17:41,448 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-07-14 00:17:41,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:17:41,633 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:17:41,645 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-07-14 00:17:41,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:17:41,727 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:17:41,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41 WrapperNode [2021-07-14 00:17:41,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:17:41,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:17:41,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:17:41,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:17:41,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:17:41,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:17:41,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:17:41,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:17:41,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... [2021-07-14 00:17:41,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:17:41,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:17:41,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:17:41,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:17:41,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:17:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:17:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:17:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:17:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:17:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:17:41,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:17:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:17:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:17:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:17:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:17:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:17:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:17:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:17:41,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:17:41,865 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:17:42,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:17:42,258 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:17:42,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:17:42 BoogieIcfgContainer [2021-07-14 00:17:42,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:17:42,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:17:42,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:17:42,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:17:42,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:17:41" (1/3) ... [2021-07-14 00:17:42,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10beb713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:17:42, skipping insertion in model container [2021-07-14 00:17:42,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:17:41" (2/3) ... [2021-07-14 00:17:42,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10beb713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:17:42, skipping insertion in model container [2021-07-14 00:17:42,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:17:42" (3/3) ... [2021-07-14 00:17:42,272 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2021-07-14 00:17:42,278 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:17:42,278 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:17:42,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:17:42,279 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:17:42,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,315 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,322 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,326 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,331 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,333 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:17:42,339 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:17:42,361 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:17:42,388 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:17:42,388 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:17:42,388 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:17:42,388 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:17:42,388 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:17:42,388 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:17:42,389 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:17:42,389 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:17:43,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 4768 states have (on average 2.010696308724832) internal successors, (9587), 5558 states have internal predecessors, (9587), 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) [2021-07-14 00:17:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-14 00:17:43,100 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:43,101 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:43,101 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:43,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:43,107 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-07-14 00:17:43,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:43,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971924507] [2021-07-14 00:17:43,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:43,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:43,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:43,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:43,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:43,458 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:43,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:43,480 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:43,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:43,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:43,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:43,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:43,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:43,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:43,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:43,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971924507] [2021-07-14 00:17:43,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971924507] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:43,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:43,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:17:43,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723235618] [2021-07-14 00:17:43,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:17:43,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:43,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:17:43,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:17:43,577 INFO L87 Difference]: Start difference. First operand has 5559 states, 4768 states have (on average 2.010696308724832) internal successors, (9587), 5558 states have internal predecessors, (9587), 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 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:43,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:43,965 INFO L93 Difference]: Finished difference Result 9216 states and 16597 transitions. [2021-07-14 00:17:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:17:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-07-14 00:17:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:44,011 INFO L225 Difference]: With dead ends: 9216 [2021-07-14 00:17:44,011 INFO L226 Difference]: Without dead ends: 3210 [2021-07-14 00:17:44,017 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 197.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2021-07-14 00:17:44,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 2590. [2021-07-14 00:17:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2541 states have (on average 2.1983471074380163) internal successors, (5586), 2589 states have internal predecessors, (5586), 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) [2021-07-14 00:17:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 5586 transitions. [2021-07-14 00:17:44,180 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 5586 transitions. Word has length 49 [2021-07-14 00:17:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:44,181 INFO L482 AbstractCegarLoop]: Abstraction has 2590 states and 5586 transitions. [2021-07-14 00:17:44,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 5586 transitions. [2021-07-14 00:17:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-14 00:17:44,185 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:44,185 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:44,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:17:44,186 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 2100772178, now seen corresponding path program 1 times [2021-07-14 00:17:44,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:44,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319931422] [2021-07-14 00:17:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:44,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:44,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:44,293 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:44,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:44,310 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:44,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:44,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:44,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:44,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:44,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319931422] [2021-07-14 00:17:44,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319931422] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:44,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:44,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:17:44,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131054877] [2021-07-14 00:17:44,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:17:44,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:44,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:17:44,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:17:44,357 INFO L87 Difference]: Start difference. First operand 2590 states and 5586 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:44,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:44,592 INFO L93 Difference]: Finished difference Result 3694 states and 8522 transitions. [2021-07-14 00:17:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:17:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-14 00:17:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:44,607 INFO L225 Difference]: With dead ends: 3694 [2021-07-14 00:17:44,607 INFO L226 Difference]: Without dead ends: 2686 [2021-07-14 00:17:44,608 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 170.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:44,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2021-07-14 00:17:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2070. [2021-07-14 00:17:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 2035 states have (on average 2.211302211302211) internal successors, (4500), 2069 states have internal predecessors, (4500), 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) [2021-07-14 00:17:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 4500 transitions. [2021-07-14 00:17:44,674 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 4500 transitions. Word has length 51 [2021-07-14 00:17:44,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:44,675 INFO L482 AbstractCegarLoop]: Abstraction has 2070 states and 4500 transitions. [2021-07-14 00:17:44,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:44,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 4500 transitions. [2021-07-14 00:17:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-14 00:17:44,682 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:44,682 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:44,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:17:44,682 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:44,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:44,690 INFO L82 PathProgramCache]: Analyzing trace with hash -461308845, now seen corresponding path program 1 times [2021-07-14 00:17:44,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:44,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124204452] [2021-07-14 00:17:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:44,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:44,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:44,777 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:44,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:44,786 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:44,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:44,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:44,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:44,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:44,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:44,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:44,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124204452] [2021-07-14 00:17:44,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124204452] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:44,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:44,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:17:44,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653972859] [2021-07-14 00:17:44,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:17:44,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:44,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:17:44,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:17:44,826 INFO L87 Difference]: Start difference. First operand 2070 states and 4500 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:45,011 INFO L93 Difference]: Finished difference Result 3098 states and 7266 transitions. [2021-07-14 00:17:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:17:45,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-07-14 00:17:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:45,024 INFO L225 Difference]: With dead ends: 3098 [2021-07-14 00:17:45,024 INFO L226 Difference]: Without dead ends: 2282 [2021-07-14 00:17:45,024 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 151.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:45,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2021-07-14 00:17:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1654. [2021-07-14 00:17:45,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1629 states have (on average 2.2786985880908532) internal successors, (3712), 1653 states have internal predecessors, (3712), 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) [2021-07-14 00:17:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 3712 transitions. [2021-07-14 00:17:45,087 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 3712 transitions. Word has length 53 [2021-07-14 00:17:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:45,087 INFO L482 AbstractCegarLoop]: Abstraction has 1654 states and 3712 transitions. [2021-07-14 00:17:45,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 3712 transitions. [2021-07-14 00:17:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-14 00:17:45,091 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:45,091 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:45,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:17:45,092 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:45,092 INFO L82 PathProgramCache]: Analyzing trace with hash -187634092, now seen corresponding path program 1 times [2021-07-14 00:17:45,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:45,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153973295] [2021-07-14 00:17:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:45,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,154 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:45,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:45,168 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:45,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:45,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:45,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:45,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153973295] [2021-07-14 00:17:45,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153973295] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:45,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:45,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:17:45,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868587033] [2021-07-14 00:17:45,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:17:45,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:45,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:17:45,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:17:45,248 INFO L87 Difference]: Start difference. First operand 1654 states and 3712 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:45,392 INFO L93 Difference]: Finished difference Result 2334 states and 5335 transitions. [2021-07-14 00:17:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:17:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-14 00:17:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:45,398 INFO L225 Difference]: With dead ends: 2334 [2021-07-14 00:17:45,398 INFO L226 Difference]: Without dead ends: 1074 [2021-07-14 00:17:45,399 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 170.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-07-14 00:17:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 850. [2021-07-14 00:17:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 825 states have (on average 2.264242424242424) internal successors, (1868), 849 states have internal predecessors, (1868), 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) [2021-07-14 00:17:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1868 transitions. [2021-07-14 00:17:45,421 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1868 transitions. Word has length 55 [2021-07-14 00:17:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:45,421 INFO L482 AbstractCegarLoop]: Abstraction has 850 states and 1868 transitions. [2021-07-14 00:17:45,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1868 transitions. [2021-07-14 00:17:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-14 00:17:45,423 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:45,423 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:45,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:17:45,423 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:45,424 INFO L82 PathProgramCache]: Analyzing trace with hash 453940736, now seen corresponding path program 1 times [2021-07-14 00:17:45,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:45,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741725086] [2021-07-14 00:17:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:45,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,494 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:45,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:45,503 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:45,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:45,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:45,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:45,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741725086] [2021-07-14 00:17:45,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741725086] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:45,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:45,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:17:45,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099948537] [2021-07-14 00:17:45,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:17:45,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:17:45,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:17:45,535 INFO L87 Difference]: Start difference. First operand 850 states and 1868 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:45,699 INFO L93 Difference]: Finished difference Result 1332 states and 3124 transitions. [2021-07-14 00:17:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:17:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-07-14 00:17:45,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:45,705 INFO L225 Difference]: With dead ends: 1332 [2021-07-14 00:17:45,705 INFO L226 Difference]: Without dead ends: 998 [2021-07-14 00:17:45,705 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 140.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-07-14 00:17:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 774. [2021-07-14 00:17:45,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 754 states have (on average 2.197612732095491) internal successors, (1657), 773 states have internal predecessors, (1657), 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) [2021-07-14 00:17:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1657 transitions. [2021-07-14 00:17:45,726 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1657 transitions. Word has length 56 [2021-07-14 00:17:45,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:45,726 INFO L482 AbstractCegarLoop]: Abstraction has 774 states and 1657 transitions. [2021-07-14 00:17:45,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1657 transitions. [2021-07-14 00:17:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-14 00:17:45,728 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:45,728 INFO L508 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] [2021-07-14 00:17:45,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:17:45,729 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:45,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1444757268, now seen corresponding path program 1 times [2021-07-14 00:17:45,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:45,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444063008] [2021-07-14 00:17:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:45,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,769 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:17:45,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:17:45,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:17:45,789 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:17:45,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:45,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:45,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444063008] [2021-07-14 00:17:45,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444063008] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:45,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:45,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:17:45,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827805629] [2021-07-14 00:17:45,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:17:45,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:45,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:17:45,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:17:45,799 INFO L87 Difference]: Start difference. First operand 774 states and 1657 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2021-07-14 00:17:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:45,885 INFO L93 Difference]: Finished difference Result 966 states and 2043 transitions. [2021-07-14 00:17:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:17:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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 [2021-07-14 00:17:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:45,889 INFO L225 Difference]: With dead ends: 966 [2021-07-14 00:17:45,889 INFO L226 Difference]: Without dead ends: 662 [2021-07-14 00:17:45,890 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 71.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:17:45,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-07-14 00:17:45,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2021-07-14 00:17:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 642 states have (on average 2.264797507788162) internal successors, (1454), 661 states have internal predecessors, (1454), 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) [2021-07-14 00:17:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1454 transitions. [2021-07-14 00:17:45,906 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1454 transitions. Word has length 57 [2021-07-14 00:17:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:45,907 INFO L482 AbstractCegarLoop]: Abstraction has 662 states and 1454 transitions. [2021-07-14 00:17:45,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2021-07-14 00:17:45,907 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1454 transitions. [2021-07-14 00:17:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-14 00:17:45,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:45,909 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:17:45,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:17:45,909 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:45,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:45,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1127767543, now seen corresponding path program 1 times [2021-07-14 00:17:45,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:45,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744953560] [2021-07-14 00:17:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:45,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:45,951 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:17:45,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:17:45,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:17:45,972 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:17:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:45,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:45,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:45,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:45,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744953560] [2021-07-14 00:17:45,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744953560] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:45,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:45,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:17:45,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787488567] [2021-07-14 00:17:45,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:17:45,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:17:45,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:17:45,982 INFO L87 Difference]: Start difference. First operand 662 states and 1454 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:46,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:46,085 INFO L93 Difference]: Finished difference Result 671 states and 1409 transitions. [2021-07-14 00:17:46,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:17:46,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-14 00:17:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:46,088 INFO L225 Difference]: With dead ends: 671 [2021-07-14 00:17:46,088 INFO L226 Difference]: Without dead ends: 443 [2021-07-14 00:17:46,089 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 85.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:17:46,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-07-14 00:17:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2021-07-14 00:17:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 425 states have (on average 2.192941176470588) internal successors, (932), 442 states have internal predecessors, (932), 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) [2021-07-14 00:17:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 932 transitions. [2021-07-14 00:17:46,099 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 932 transitions. Word has length 58 [2021-07-14 00:17:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:46,099 INFO L482 AbstractCegarLoop]: Abstraction has 443 states and 932 transitions. [2021-07-14 00:17:46,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 932 transitions. [2021-07-14 00:17:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-14 00:17:46,100 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:46,100 INFO L508 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] [2021-07-14 00:17:46,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:17:46,100 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1185730584, now seen corresponding path program 1 times [2021-07-14 00:17:46,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:46,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214389807] [2021-07-14 00:17:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:46,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,146 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:17:46,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:17:46,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:17:46,167 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:17:46,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:46,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:46,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:46,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214389807] [2021-07-14 00:17:46,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214389807] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:46,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:46,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:17:46,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477531008] [2021-07-14 00:17:46,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:17:46,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:46,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:17:46,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:17:46,178 INFO L87 Difference]: Start difference. First operand 443 states and 932 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:46,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:46,301 INFO L93 Difference]: Finished difference Result 335 states and 642 transitions. [2021-07-14 00:17:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:17:46,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-14 00:17:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:46,302 INFO L225 Difference]: With dead ends: 335 [2021-07-14 00:17:46,302 INFO L226 Difference]: Without dead ends: 200 [2021-07-14 00:17:46,303 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 101.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:17:46,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-07-14 00:17:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-07-14 00:17:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 191 states have (on average 1.8219895287958114) internal successors, (348), 199 states have internal predecessors, (348), 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) [2021-07-14 00:17:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 348 transitions. [2021-07-14 00:17:46,307 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 348 transitions. Word has length 59 [2021-07-14 00:17:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:46,307 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 348 transitions. [2021-07-14 00:17:46,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:17:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 348 transitions. [2021-07-14 00:17:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:17:46,308 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:46,308 INFO L508 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] [2021-07-14 00:17:46,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:17:46,309 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:46,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1723882905, now seen corresponding path program 1 times [2021-07-14 00:17:46,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:46,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426785124] [2021-07-14 00:17:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:46,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,362 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:46,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:46,372 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:46,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:46,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:46,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:46,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:46,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:46,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426785124] [2021-07-14 00:17:46,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426785124] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:46,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:46,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:17:46,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676990208] [2021-07-14 00:17:46,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:17:46,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:46,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:17:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:17:46,409 INFO L87 Difference]: Start difference. First operand 200 states and 348 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2021-07-14 00:17:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:46,480 INFO L93 Difference]: Finished difference Result 310 states and 577 transitions. [2021-07-14 00:17:46,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:17:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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 [2021-07-14 00:17:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:46,482 INFO L225 Difference]: With dead ends: 310 [2021-07-14 00:17:46,482 INFO L226 Difference]: Without dead ends: 195 [2021-07-14 00:17:46,482 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 78.5ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:17:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-07-14 00:17:46,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-07-14 00:17:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 186 states have (on average 1.8333333333333333) internal successors, (341), 194 states have internal predecessors, (341), 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) [2021-07-14 00:17:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 341 transitions. [2021-07-14 00:17:46,486 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 341 transitions. Word has length 61 [2021-07-14 00:17:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:46,486 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 341 transitions. [2021-07-14 00:17:46,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2021-07-14 00:17:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 341 transitions. [2021-07-14 00:17:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:17:46,487 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:17:46,487 INFO L508 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] [2021-07-14 00:17:46,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:17:46,488 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:17:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:17:46,488 INFO L82 PathProgramCache]: Analyzing trace with hash -112571761, now seen corresponding path program 2 times [2021-07-14 00:17:46,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:17:46,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517382260] [2021-07-14 00:17:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:17:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:17:46,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:17:46,532 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:17:46,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:17:46,541 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:17:46,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:17:46,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:46,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:17:46,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:17:46,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:17:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:17:46,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:17:46,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517382260] [2021-07-14 00:17:46,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517382260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:17:46,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:17:46,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:17:46,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965015503] [2021-07-14 00:17:46,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:17:46,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:17:46,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:17:46,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:17:46,588 INFO L87 Difference]: Start difference. First operand 195 states and 341 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2021-07-14 00:17:46,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:17:46,643 INFO L93 Difference]: Finished difference Result 159 states and 281 transitions. [2021-07-14 00:17:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 00:17:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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 [2021-07-14 00:17:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:17:46,644 INFO L225 Difference]: With dead ends: 159 [2021-07-14 00:17:46,644 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:17:46,644 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:17:46,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:17:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:17:46,645 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) [2021-07-14 00:17:46,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:17:46,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-07-14 00:17:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:17:46,645 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:17:46,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2021-07-14 00:17:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:17:46,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:17:46,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:17:46,647 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:17:46,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:17:46 BasicIcfg [2021-07-14 00:17:46,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:17:46,650 INFO L168 Benchmark]: Toolchain (without parser) took 5423.33 ms. Allocated memory was 341.8 MB in the beginning and 429.9 MB in the end (delta: 88.1 MB). Free memory was 303.6 MB in the beginning and 328.9 MB in the end (delta: -25.3 MB). Peak memory consumption was 63.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,650 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 341.8 MB. Free memory is still 321.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:17:46,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.95 ms. Allocated memory is still 341.8 MB. Free memory was 303.3 MB in the beginning and 314.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.44 ms. Allocated memory is still 341.8 MB. Free memory was 314.7 MB in the beginning and 312.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,654 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 341.8 MB. Free memory was 312.6 MB in the beginning and 311.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,655 INFO L168 Benchmark]: RCFGBuilder took 456.64 ms. Allocated memory is still 341.8 MB. Free memory was 311.0 MB in the beginning and 287.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,657 INFO L168 Benchmark]: TraceAbstraction took 4382.96 ms. Allocated memory was 341.8 MB in the beginning and 429.9 MB in the end (delta: 88.1 MB). Free memory was 286.9 MB in the beginning and 328.9 MB in the end (delta: -42.0 MB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 GB. [2021-07-14 00:17:46,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 341.8 MB. Free memory is still 321.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 497.95 ms. Allocated memory is still 341.8 MB. Free memory was 303.3 MB in the beginning and 314.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.44 ms. Allocated memory is still 341.8 MB. Free memory was 314.7 MB in the beginning and 312.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 341.8 MB. Free memory was 312.6 MB in the beginning and 311.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 456.64 ms. Allocated memory is still 341.8 MB. Free memory was 311.0 MB in the beginning and 287.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4382.96 ms. Allocated memory was 341.8 MB in the beginning and 429.9 MB in the end (delta: 88.1 MB). Free memory was 286.9 MB in the beginning and 328.9 MB in the end (delta: -42.0 MB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18424, positive: 17668, positive conditional: 17668, positive unconditional: 0, negative: 756, negative conditional: 756, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18345, positive: 17668, positive conditional: 0, positive unconditional: 17668, negative: 677, negative conditional: 0, negative unconditional: 677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 658, positive: 637, positive conditional: 0, positive unconditional: 637, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 658, positive: 633, positive conditional: 0, positive unconditional: 633, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18345, positive: 17031, positive conditional: 0, positive unconditional: 17031, negative: 656, negative conditional: 0, negative unconditional: 656, unknown: 658, unknown conditional: 0, unknown unconditional: 658] , Statistics on independence cache: Total cache size (in pairs): 658, Positive cache size: 637, Positive conditional cache size: 0, Positive unconditional cache size: 637, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 79 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4260.4ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 65.3ms, AutomataDifference: 1697.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 666.0ms, PartialOrderReductionTime: 644.0ms, HoareTripleCheckerStatistics: 949 SDtfs, 1367 SDslu, 3240 SDs, 0 SdLazy, 473 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 343.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1247.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 355.4ms AutomataMinimizationTime, 10 MinimizatonAttempts, 2312 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 47.0ms SsaConstructionTime, 220.4ms SatisfiabilityAnalysisTime, 1012.9ms InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 550 ConstructedInterpolants, 0 QuantifiedInterpolants, 2182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! Received shutdown request...