/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:13:20,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:13:20,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:13:20,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:13:20,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:13:20,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:13:20,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:13:20,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:13:20,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:13:20,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:13:20,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:13:20,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:13:20,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:13:20,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:13:20,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:13:20,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:13:20,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:13:20,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:13:20,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:13:20,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:13:20,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:13:20,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:13:21,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:13:21,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:13:21,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:13:21,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:13:21,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:13:21,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:13:21,017 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-Separate.epf [2021-06-05 10:13:21,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:13:21,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:13:21,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:13:21,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:13:21,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:13:21,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:13:21,045 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:13:21,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:13:21,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:13:21,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:13:21,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:13:21,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:13:21,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:13:21,047 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:13:21,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:13:21,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:13:21,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:13:21,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:13:21,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:13:21,277 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:13:21,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2021-06-05 10:13:21,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7ce791e1/6d91fb3d87a34f1fb41f305e0252ad44/FLAG4f430c351 [2021-06-05 10:13:21,765 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:13:21,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_power.opt.i [2021-06-05 10:13:21,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7ce791e1/6d91fb3d87a34f1fb41f305e0252ad44/FLAG4f430c351 [2021-06-05 10:13:21,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7ce791e1/6d91fb3d87a34f1fb41f305e0252ad44 [2021-06-05 10:13:21,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:13:21,800 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:13:21,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:13:21,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:13:21,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:13:21,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:13:21" (1/1) ... [2021-06-05 10:13:21,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4ae857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:21, skipping insertion in model container [2021-06-05 10:13:21,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:13:21" (1/1) ... [2021-06-05 10:13:21,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:13:21,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:13:22,012 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/safe037_power.opt.i[951,964] [2021-06-05 10:13:22,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:13:22,174 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:13:22,182 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/safe037_power.opt.i[951,964] [2021-06-05 10:13:22,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:13:22,253 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:13:22,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22 WrapperNode [2021-06-05 10:13:22,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:13:22,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:13:22,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:13:22,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:13:22,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:13:22,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:13:22,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:13:22,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:13:22,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (1/1) ... [2021-06-05 10:13:22,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:13:22,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:13:22,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:13:22,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:13:22,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (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 [2021-06-05 10:13:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:13:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:13:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:13:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:13:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:13:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:13:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:13:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:13:22,352 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:13:22,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:13:22,617 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:13:22,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:13:22 BoogieIcfgContainer [2021-06-05 10:13:22,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:13:22,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:13:22,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:13:22,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:13:22,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:13:21" (1/3) ... [2021-06-05 10:13:22,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7858fa60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:13:22, skipping insertion in model container [2021-06-05 10:13:22,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:13:22" (2/3) ... [2021-06-05 10:13:22,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7858fa60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:13:22, skipping insertion in model container [2021-06-05 10:13:22,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:13:22" (3/3) ... [2021-06-05 10:13:22,623 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_power.opt.i [2021-06-05 10:13:22,627 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:13:22,627 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:13:22,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:13:22,628 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:13:22,660 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:13:22,673 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:13:22,685 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:13:22,685 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:13:22,685 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:13:22,685 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:13:22,685 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:13:22,685 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:13:22,685 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:13:22,685 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:13:22,692 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 85 transitions, 185 flow [2021-06-05 10:13:23,063 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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) [2021-06-05 10:13:23,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 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) [2021-06-05 10:13:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 10:13:23,122 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:23,123 INFO L521 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] [2021-06-05 10:13:23,123 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:23,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1743011939, now seen corresponding path program 1 times [2021-06-05 10:13:23,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:23,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964766095] [2021-06-05 10:13:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:23,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:23,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964766095] [2021-06-05 10:13:23,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964766095] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:23,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:23,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:13:23,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083798414] [2021-06-05 10:13:23,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:13:23,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:23,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:13:23,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:13:23,489 INFO L87 Difference]: Start difference. First operand has 9333 states, 9331 states have (on average 3.562104811917265) internal successors, (33238), 9332 states have internal predecessors, (33238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-06-05 10:13:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:23,725 INFO L93 Difference]: Finished difference Result 9297 states and 31541 transitions. [2021-06-05 10:13:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:13:23,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-06-05 10:13:23,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:23,762 INFO L225 Difference]: With dead ends: 9297 [2021-06-05 10:13:23,763 INFO L226 Difference]: Without dead ends: 4513 [2021-06-05 10:13:23,764 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 114.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2021-06-05 10:13:23,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 4513. [2021-06-05 10:13:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4513 states, 4512 states have (on average 3.3324468085106385) internal successors, (15036), 4512 states have internal predecessors, (15036), 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) [2021-06-05 10:13:23,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4513 states to 4513 states and 15036 transitions. [2021-06-05 10:13:23,957 INFO L78 Accepts]: Start accepts. Automaton has 4513 states and 15036 transitions. Word has length 50 [2021-06-05 10:13:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:23,960 INFO L482 AbstractCegarLoop]: Abstraction has 4513 states and 15036 transitions. [2021-06-05 10:13:23,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-06-05 10:13:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4513 states and 15036 transitions. [2021-06-05 10:13:23,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:13:23,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:23,975 INFO L521 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] [2021-06-05 10:13:23,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:13:23,976 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1473884635, now seen corresponding path program 1 times [2021-06-05 10:13:23,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:23,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838567220] [2021-06-05 10:13:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:24,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:24,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838567220] [2021-06-05 10:13:24,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838567220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:24,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:24,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:24,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781595372] [2021-06-05 10:13:24,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:24,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:24,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:24,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:24,146 INFO L87 Difference]: Start difference. First operand 4513 states and 15036 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:24,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:24,355 INFO L93 Difference]: Finished difference Result 4045 states and 12969 transitions. [2021-06-05 10:13:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:13:24,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:13:24,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:24,370 INFO L225 Difference]: With dead ends: 4045 [2021-06-05 10:13:24,370 INFO L226 Difference]: Without dead ends: 2929 [2021-06-05 10:13:24,371 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:13:24,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2021-06-05 10:13:24,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2929. [2021-06-05 10:13:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2928 states have (on average 3.151639344262295) internal successors, (9228), 2928 states have internal predecessors, (9228), 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) [2021-06-05 10:13:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 9228 transitions. [2021-06-05 10:13:24,467 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 9228 transitions. Word has length 54 [2021-06-05 10:13:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:24,467 INFO L482 AbstractCegarLoop]: Abstraction has 2929 states and 9228 transitions. [2021-06-05 10:13:24,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 9228 transitions. [2021-06-05 10:13:24,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:13:24,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:24,473 INFO L521 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] [2021-06-05 10:13:24,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:13:24,474 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:24,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:24,474 INFO L82 PathProgramCache]: Analyzing trace with hash 881641083, now seen corresponding path program 1 times [2021-06-05 10:13:24,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:24,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678651077] [2021-06-05 10:13:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:24,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:24,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678651077] [2021-06-05 10:13:24,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678651077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:24,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:24,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:13:24,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701067201] [2021-06-05 10:13:24,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:13:24,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:13:24,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:13:24,557 INFO L87 Difference]: Start difference. First operand 2929 states and 9228 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-06-05 10:13:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:24,688 INFO L93 Difference]: Finished difference Result 2281 states and 7005 transitions. [2021-06-05 10:13:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:13:24,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 [2021-06-05 10:13:24,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:24,696 INFO L225 Difference]: With dead ends: 2281 [2021-06-05 10:13:24,696 INFO L226 Difference]: Without dead ends: 1741 [2021-06-05 10:13:24,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 98.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:13:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2021-06-05 10:13:24,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2021-06-05 10:13:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1740 states have (on average 3.027586206896552) internal successors, (5268), 1740 states have internal predecessors, (5268), 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) [2021-06-05 10:13:24,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 5268 transitions. [2021-06-05 10:13:24,736 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 5268 transitions. Word has length 58 [2021-06-05 10:13:24,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:24,736 INFO L482 AbstractCegarLoop]: Abstraction has 1741 states and 5268 transitions. [2021-06-05 10:13:24,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-06-05 10:13:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 5268 transitions. [2021-06-05 10:13:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:13:24,740 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:24,740 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:24,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:13:24,740 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:24,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:24,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2050639681, now seen corresponding path program 1 times [2021-06-05 10:13:24,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:24,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133531181] [2021-06-05 10:13:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:24,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:24,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133531181] [2021-06-05 10:13:24,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133531181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:24,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:24,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:24,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183840626] [2021-06-05 10:13:24,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:24,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:24,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:24,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:24,875 INFO L87 Difference]: Start difference. First operand 1741 states and 5268 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:24,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:24,967 INFO L93 Difference]: Finished difference Result 2404 states and 7288 transitions. [2021-06-05 10:13:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:13:24,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:13:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:24,974 INFO L225 Difference]: With dead ends: 2404 [2021-06-05 10:13:24,975 INFO L226 Difference]: Without dead ends: 1713 [2021-06-05 10:13:24,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2021-06-05 10:13:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1485. [2021-06-05 10:13:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 2.967654986522911) internal successors, (4404), 1484 states have internal predecessors, (4404), 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) [2021-06-05 10:13:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 4404 transitions. [2021-06-05 10:13:25,002 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 4404 transitions. Word has length 62 [2021-06-05 10:13:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:25,002 INFO L482 AbstractCegarLoop]: Abstraction has 1485 states and 4404 transitions. [2021-06-05 10:13:25,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 4404 transitions. [2021-06-05 10:13:25,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:13:25,005 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:25,006 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:25,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:13:25,006 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:25,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1003477565, now seen corresponding path program 2 times [2021-06-05 10:13:25,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:25,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95582884] [2021-06-05 10:13:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:25,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:25,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95582884] [2021-06-05 10:13:25,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95582884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:25,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:25,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:25,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426906953] [2021-06-05 10:13:25,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:25,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:25,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:25,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:25,074 INFO L87 Difference]: Start difference. First operand 1485 states and 4404 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:25,150 INFO L93 Difference]: Finished difference Result 2100 states and 6260 transitions. [2021-06-05 10:13:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:13:25,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:13:25,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:25,155 INFO L225 Difference]: With dead ends: 2100 [2021-06-05 10:13:25,155 INFO L226 Difference]: Without dead ends: 1301 [2021-06-05 10:13:25,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2021-06-05 10:13:25,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1121. [2021-06-05 10:13:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 2.9214285714285713) internal successors, (3272), 1120 states have internal predecessors, (3272), 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) [2021-06-05 10:13:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3272 transitions. [2021-06-05 10:13:25,175 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 3272 transitions. Word has length 62 [2021-06-05 10:13:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:25,175 INFO L482 AbstractCegarLoop]: Abstraction has 1121 states and 3272 transitions. [2021-06-05 10:13:25,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 3272 transitions. [2021-06-05 10:13:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:13:25,177 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:13:25,178 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:13:25,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:13:25,178 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:13:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:13:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1528285661, now seen corresponding path program 3 times [2021-06-05 10:13:25,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:13:25,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521460259] [2021-06-05 10:13:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:13:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:13:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:13:25,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:13:25,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521460259] [2021-06-05 10:13:25,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521460259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:13:25,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:13:25,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:13:25,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989579597] [2021-06-05 10:13:25,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:13:25,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:13:25,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:13:25,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:13:25,245 INFO L87 Difference]: Start difference. First operand 1121 states and 3272 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:13:25,307 INFO L93 Difference]: Finished difference Result 1067 states and 3110 transitions. [2021-06-05 10:13:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 10:13:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 10:13:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:13:25,308 INFO L225 Difference]: With dead ends: 1067 [2021-06-05 10:13:25,308 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:13:25,308 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 73.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:13:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:13:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:13:25,309 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) [2021-06-05 10:13:25,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:13:25,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-06-05 10:13:25,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:13:25,309 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:13:25,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:13:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:13:25,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:13:25,309 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:13:25,310 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:13:25,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:13:25 BasicIcfg [2021-06-05 10:13:25,312 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:13:25,313 INFO L168 Benchmark]: Toolchain (without parser) took 3512.51 ms. Allocated memory was 352.3 MB in the beginning and 539.0 MB in the end (delta: 186.6 MB). Free memory was 315.5 MB in the beginning and 346.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 158.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:25,313 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 352.3 MB. Free memory is still 333.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:13:25,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.54 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 315.3 MB in the end (delta: 25.1 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:25,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.44 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 313.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:25,314 INFO L168 Benchmark]: Boogie Preprocessor took 15.55 ms. Allocated memory is still 352.3 MB. Free memory was 313.2 MB in the beginning and 312.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:13:25,314 INFO L168 Benchmark]: RCFGBuilder took 324.15 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 285.1 MB in the end (delta: 26.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:25,314 INFO L168 Benchmark]: TraceAbstraction took 2692.32 ms. Allocated memory was 352.3 MB in the beginning and 539.0 MB in the end (delta: 186.6 MB). Free memory was 285.1 MB in the beginning and 346.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 128.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:13:25,315 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 352.3 MB. Free memory is still 333.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 451.54 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 315.3 MB in the end (delta: 25.1 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.44 ms. Allocated memory is still 352.3 MB. Free memory was 315.3 MB in the beginning and 313.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.55 ms. Allocated memory is still 352.3 MB. Free memory was 313.2 MB in the beginning and 312.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 324.15 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 285.1 MB in the end (delta: 26.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2692.32 ms. Allocated memory was 352.3 MB in the beginning and 539.0 MB in the end (delta: 186.6 MB). Free memory was 285.1 MB in the beginning and 346.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 128.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2626.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 85.8ms, AutomataDifference: 920.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 377.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 624 SDtfs, 831 SDslu, 2268 SDs, 0 SdLazy, 246 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 597.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9333occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 366.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 408 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.2ms SsaConstructionTime, 163.9ms SatisfiabilityAnalysisTime, 552.8ms InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 1166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...