/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:50:15,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:50:15,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:50:15,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:50:15,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 19:50:15,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 19:50:15,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 19:50:15,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 19:50:15,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:50:15,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:50:15,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:50:15,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:50:15,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:50:15,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:50:15,992 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:50:15,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:50:15,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:50:15,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:50:15,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:50:15,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:50:15,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:50:15,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:50:15,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:50:15,995 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:50:15,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:50:15,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:50:16,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:50:16,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:50:16,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:50:16,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:50:16,266 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:50:16,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-06-05 19:50:16,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f08b690f/1a72a43da87b4faa8a5662022c07135e/FLAG6cc98df94 [2021-06-05 19:50:16,746 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:50:16,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-06-05 19:50:16,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f08b690f/1a72a43da87b4faa8a5662022c07135e/FLAG6cc98df94 [2021-06-05 19:50:16,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f08b690f/1a72a43da87b4faa8a5662022c07135e [2021-06-05 19:50:16,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:50:16,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:50:16,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:50:16,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:50:16,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:50:16,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:50:16" (1/1) ... [2021-06-05 19:50:16,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69031525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:16, skipping insertion in model container [2021-06-05 19:50:16,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:50:16" (1/1) ... [2021-06-05 19:50:16,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:50:16,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:50:16,965 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/safe003_tso.opt.i[949,962] [2021-06-05 19:50:17,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:50:17,070 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:50:17,077 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/safe003_tso.opt.i[949,962] [2021-06-05 19:50:17,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:50:17,145 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:50:17,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17 WrapperNode [2021-06-05 19:50:17,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:50:17,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:50:17,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:50:17,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:50:17,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:50:17,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:50:17,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:50:17,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:50:17,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (1/1) ... [2021-06-05 19:50:17,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:50:17,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:50:17,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:50:17,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:50:17,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (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 19:50:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:50:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:50:17,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:50:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:50:17,278 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:50:17,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:50:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:50:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:50:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 19:50:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 19:50:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:50:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:50:17,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:50:17,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:50:17,282 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 19:50:17,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:50:17,605 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:50:17,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:50:17 BoogieIcfgContainer [2021-06-05 19:50:17,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:50:17,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:50:17,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:50:17,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:50:17,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:50:16" (1/3) ... [2021-06-05 19:50:17,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3b91cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:50:17, skipping insertion in model container [2021-06-05 19:50:17,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:50:17" (2/3) ... [2021-06-05 19:50:17,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3b91cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:50:17, skipping insertion in model container [2021-06-05 19:50:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:50:17" (3/3) ... [2021-06-05 19:50:17,614 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2021-06-05 19:50:17,619 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:50:17,619 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:50:17,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:50:17,620 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:50:17,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,659 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,659 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,660 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,664 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:50:17,667 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:50:17,681 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 19:50:17,701 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:50:17,702 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:50:17,702 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:50:17,702 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:50:17,702 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:50:17,702 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:50:17,702 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:50:17,702 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:50:17,712 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 19:50:18,018 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 19:50:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 19:50:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 19:50:18,078 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:50:18,079 INFO L554 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] [2021-06-05 19:50:18,079 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:50:18,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:50:18,083 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-05 19:50:18,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:50:18,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371561179] [2021-06-05 19:50:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:50:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:50:18,306 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 19:50:18,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:50:18,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371561179] [2021-06-05 19:50:18,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371561179] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:50:18,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:50:18,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:50:18,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259227123] [2021-06-05 19:50:18,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:50:18,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:50:18,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:50:18,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:50:18,340 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:50:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:50:18,583 INFO L93 Difference]: Finished difference Result 11439 states and 39544 transitions. [2021-06-05 19:50:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:50:18,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 19:50:18,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:50:18,619 INFO L225 Difference]: With dead ends: 11439 [2021-06-05 19:50:18,619 INFO L226 Difference]: Without dead ends: 4334 [2021-06-05 19:50:18,621 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 91.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:50:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2021-06-05 19:50:18,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 4334. [2021-06-05 19:50:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 3.3637202861758597) internal successors, (14575), 4333 states have internal predecessors, (14575), 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 19:50:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 14575 transitions. [2021-06-05 19:50:18,824 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 14575 transitions. Word has length 49 [2021-06-05 19:50:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:50:18,827 INFO L482 AbstractCegarLoop]: Abstraction has 4334 states and 14575 transitions. [2021-06-05 19:50:18,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:50:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 14575 transitions. [2021-06-05 19:50:18,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 19:50:18,860 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:50:18,860 INFO L554 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] [2021-06-05 19:50:18,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:50:18,861 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:50:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:50:18,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-06-05 19:50:18,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:50:18,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427524665] [2021-06-05 19:50:18,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:50:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:50:19,062 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 19:50:19,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:50:19,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427524665] [2021-06-05 19:50:19,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427524665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:50:19,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:50:19,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:50:19,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352000420] [2021-06-05 19:50:19,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:50:19,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:50:19,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:50:19,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:50:19,065 INFO L87 Difference]: Start difference. First operand 4334 states and 14575 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 19:50:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:50:19,378 INFO L93 Difference]: Finished difference Result 8830 states and 29363 transitions. [2021-06-05 19:50:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 19:50:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2021-06-05 19:50:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:50:19,392 INFO L225 Difference]: With dead ends: 8830 [2021-06-05 19:50:19,392 INFO L226 Difference]: Without dead ends: 3223 [2021-06-05 19:50:19,393 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 269.8ms TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2021-06-05 19:50:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2021-06-05 19:50:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 2743. [2021-06-05 19:50:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2742 states have (on average 3.12873814733771) internal successors, (8579), 2742 states have internal predecessors, (8579), 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 19:50:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 8579 transitions. [2021-06-05 19:50:19,445 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 8579 transitions. Word has length 52 [2021-06-05 19:50:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:50:19,445 INFO L482 AbstractCegarLoop]: Abstraction has 2743 states and 8579 transitions. [2021-06-05 19:50:19,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 19:50:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 8579 transitions. [2021-06-05 19:50:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 19:50:19,450 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:50:19,450 INFO L554 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] [2021-06-05 19:50:19,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:50:19,451 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:50:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:50:19,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1177997856, now seen corresponding path program 1 times [2021-06-05 19:50:19,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:50:19,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724927517] [2021-06-05 19:50:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:50:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:50:19,554 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 19:50:19,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:50:19,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724927517] [2021-06-05 19:50:19,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724927517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:50:19,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:50:19,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:50:19,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373933916] [2021-06-05 19:50:19,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:50:19,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:50:19,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:50:19,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:50:19,557 INFO L87 Difference]: Start difference. First operand 2743 states and 8579 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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) [2021-06-05 19:50:19,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:50:19,719 INFO L93 Difference]: Finished difference Result 3023 states and 9413 transitions. [2021-06-05 19:50:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 19:50:19,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 [2021-06-05 19:50:19,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:50:19,726 INFO L225 Difference]: With dead ends: 3023 [2021-06-05 19:50:19,726 INFO L226 Difference]: Without dead ends: 1798 [2021-06-05 19:50:19,727 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-06-05 19:50:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-06-05 19:50:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-06-05 19:50:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1797 states have (on average 3.132999443516973) internal successors, (5630), 1797 states have internal predecessors, (5630), 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 19:50:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5630 transitions. [2021-06-05 19:50:19,765 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5630 transitions. Word has length 56 [2021-06-05 19:50:19,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:50:19,766 INFO L482 AbstractCegarLoop]: Abstraction has 1798 states and 5630 transitions. [2021-06-05 19:50:19,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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) [2021-06-05 19:50:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5630 transitions. [2021-06-05 19:50:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 19:50:19,769 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:50:19,769 INFO L554 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] [2021-06-05 19:50:19,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:50:19,770 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:50:19,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:50:19,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1511387322, now seen corresponding path program 1 times [2021-06-05 19:50:19,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:50:19,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700058316] [2021-06-05 19:50:19,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:50:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:50:19,907 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 19:50:19,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:50:19,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700058316] [2021-06-05 19:50:19,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700058316] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:50:19,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:50:19,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:50:19,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121912097] [2021-06-05 19:50:19,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:50:19,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:50:19,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:50:19,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:50:19,909 INFO L87 Difference]: Start difference. First operand 1798 states and 5630 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:50:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:50:19,994 INFO L93 Difference]: Finished difference Result 1638 states and 5102 transitions. [2021-06-05 19:50:20,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:50:20,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 19:50:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:50:20,009 INFO L225 Difference]: With dead ends: 1638 [2021-06-05 19:50:20,009 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:50:20,009 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 104.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 19:50:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:50:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:50:20,010 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 19:50:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:50:20,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-05 19:50:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:50:20,010 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:50:20,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:50:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:50:20,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:50:20,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:50:20,012 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:50:20,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:50:20 BasicIcfg [2021-06-05 19:50:20,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:50:20,014 INFO L168 Benchmark]: Toolchain (without parser) took 3239.43 ms. Allocated memory was 337.6 MB in the beginning and 503.3 MB in the end (delta: 165.7 MB). Free memory was 300.7 MB in the beginning and 326.8 MB in the end (delta: -26.1 MB). Peak memory consumption was 142.2 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,014 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 318.7 MB in the beginning and 318.6 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:50:20,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.87 ms. Allocated memory is still 337.6 MB. Free memory was 300.4 MB in the beginning and 299.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 337.6 MB. Free memory was 299.4 MB in the beginning and 297.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,015 INFO L168 Benchmark]: Boogie Preprocessor took 23.49 ms. Allocated memory is still 337.6 MB. Free memory was 297.3 MB in the beginning and 296.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,015 INFO L168 Benchmark]: RCFGBuilder took 394.08 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 270.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,016 INFO L168 Benchmark]: TraceAbstraction took 2403.91 ms. Allocated memory was 337.6 MB in the beginning and 503.3 MB in the end (delta: 165.7 MB). Free memory was 270.1 MB in the beginning and 326.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 112.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:50:20,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 337.6 MB. Free memory was 318.7 MB in the beginning and 318.6 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 369.87 ms. Allocated memory is still 337.6 MB. Free memory was 300.4 MB in the beginning and 299.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.86 ms. Allocated memory is still 337.6 MB. Free memory was 299.4 MB in the beginning and 297.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.49 ms. Allocated memory is still 337.6 MB. Free memory was 297.3 MB in the beginning and 296.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 394.08 ms. Allocated memory is still 337.6 MB. Free memory was 296.3 MB in the beginning and 270.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2403.91 ms. Allocated memory was 337.6 MB in the beginning and 503.3 MB in the end (delta: 165.7 MB). Free memory was 270.1 MB in the beginning and 326.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 112.1 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 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: 2310.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 98.8ms, AutomataDifference: 909.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 316.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 495 SDtfs, 734 SDslu, 1808 SDs, 0 SdLazy, 146 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 146.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 623.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 285.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 480 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 100.1ms SatisfiabilityAnalysisTime, 485.6ms InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...