/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:48:55,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:48:55,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:48:55,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:48:55,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:48:55,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:48:55,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:48:55,733 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 [2021-07-09 16:48:55,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:48:55,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:48:55,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:48:55,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:48:55,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:48:55,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:48:55,769 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:48:55,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:48:55,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:48:55,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:48:55,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:48:55,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:48:55,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:48:55,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:48:55,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:48:55,772 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:48:55,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:48:55,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:48:55,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:48:55,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:48:55,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:48:55,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:48:55,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:48:55,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:55,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:48:55,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:48:55,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:48:55,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:48:55,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:48:55,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:48:55,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:48:55,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:48:56,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:48:56,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:48:56,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:48:56,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:48:56,126 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:48:56,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-07-09 16:48:56,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b146c622a/51dbea736cdb49b7a010fa2c9f628f63/FLAGca8b11336 [2021-07-09 16:48:56,710 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:48:56,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-07-09 16:48:56,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b146c622a/51dbea736cdb49b7a010fa2c9f628f63/FLAGca8b11336 [2021-07-09 16:48:57,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b146c622a/51dbea736cdb49b7a010fa2c9f628f63 [2021-07-09 16:48:57,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:48:57,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:48:57,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:57,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:48:57,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:48:57,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c5e63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57, skipping insertion in model container [2021-07-09 16:48:57,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:48:57,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:48:57,222 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/safe010_tso.oepc.i[950,963] [2021-07-09 16:48:57,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:57,412 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:48:57,423 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/safe010_tso.oepc.i[950,963] [2021-07-09 16:48:57,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:48:57,496 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:48:57,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57 WrapperNode [2021-07-09 16:48:57,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:48:57,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:57,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:48:57,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:48:57,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:48:57,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:48:57,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:48:57,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:48:57,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... [2021-07-09 16:48:57,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:48:57,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:48:57,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:48:57,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:48:57,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:48:57,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:48:57,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:48:57,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:48:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:48:57,670 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:48:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:48:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:48:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:48:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:48:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:48:57,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:48:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:48:57,674 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:48:58,083 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:48:58,084 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:48:58,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:58 BoogieIcfgContainer [2021-07-09 16:48:58,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:48:58,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:48:58,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:48:58,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:48:58,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:48:57" (1/3) ... [2021-07-09 16:48:58,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b02662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:58, skipping insertion in model container [2021-07-09 16:48:58,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:48:57" (2/3) ... [2021-07-09 16:48:58,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b02662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:48:58, skipping insertion in model container [2021-07-09 16:48:58,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:48:58" (3/3) ... [2021-07-09 16:48:58,092 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2021-07-09 16:48:58,098 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:48:58,098 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:48:58,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:48:58,099 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:48:58,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,129 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,132 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,132 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,133 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,136 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,137 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,137 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,137 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:48:58,146 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:48:58,168 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 16:48:58,196 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:48:58,197 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:48:58,197 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:48:58,197 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:48:58,197 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:48:58,197 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:48:58,197 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:48:58,197 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:48:58,210 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 66 transitions, 142 flow [2021-07-09 16:48:58,279 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 804 states, 803 states have (on average 2.62266500622665) internal successors, (2106), 803 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 804 states, 803 states have (on average 2.62266500622665) internal successors, (2106), 803 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:58,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-07-09 16:48:58,309 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:58,310 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:58,310 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:58,315 INFO L82 PathProgramCache]: Analyzing trace with hash 806251978, now seen corresponding path program 1 times [2021-07-09 16:48:58,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:58,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756663904] [2021-07-09 16:48:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:58,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:58,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756663904] [2021-07-09 16:48:58,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756663904] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:58,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:58,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:58,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712956609] [2021-07-09 16:48:58,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:58,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:58,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:58,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:58,793 INFO L87 Difference]: Start difference. First operand has 804 states, 803 states have (on average 2.62266500622665) internal successors, (2106), 803 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:59,112 INFO L93 Difference]: Finished difference Result 1296 states and 3243 transitions. [2021-07-09 16:48:59,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:48:59,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 40 [2021-07-09 16:48:59,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:59,144 INFO L225 Difference]: With dead ends: 1296 [2021-07-09 16:48:59,150 INFO L226 Difference]: Without dead ends: 791 [2021-07-09 16:48:59,151 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 264.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:48:59,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-07-09 16:48:59,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 671. [2021-07-09 16:48:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 670 states have (on average 2.4417910447761195) internal successors, (1636), 670 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1636 transitions. [2021-07-09 16:48:59,259 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1636 transitions. Word has length 40 [2021-07-09 16:48:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:59,260 INFO L482 AbstractCegarLoop]: Abstraction has 671 states and 1636 transitions. [2021-07-09 16:48:59,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1636 transitions. [2021-07-09 16:48:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-09 16:48:59,263 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:59,263 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:59,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:48:59,263 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:59,264 INFO L82 PathProgramCache]: Analyzing trace with hash 868346537, now seen corresponding path program 1 times [2021-07-09 16:48:59,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:59,264 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262884329] [2021-07-09 16:48:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:48:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:48:59,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:48:59,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262884329] [2021-07-09 16:48:59,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262884329] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:48:59,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:48:59,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:48:59,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726875659] [2021-07-09 16:48:59,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:48:59,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:48:59,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:48:59,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:48:59,488 INFO L87 Difference]: Start difference. First operand 671 states and 1636 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:48:59,842 INFO L93 Difference]: Finished difference Result 1011 states and 2408 transitions. [2021-07-09 16:48:59,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:48:59,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-07-09 16:48:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:48:59,849 INFO L225 Difference]: With dead ends: 1011 [2021-07-09 16:48:59,850 INFO L226 Difference]: Without dead ends: 731 [2021-07-09 16:48:59,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 308.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:48:59,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-07-09 16:48:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 611. [2021-07-09 16:48:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 2.40655737704918) internal successors, (1468), 610 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1468 transitions. [2021-07-09 16:48:59,877 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1468 transitions. Word has length 42 [2021-07-09 16:48:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:48:59,878 INFO L482 AbstractCegarLoop]: Abstraction has 611 states and 1468 transitions. [2021-07-09 16:48:59,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:48:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1468 transitions. [2021-07-09 16:48:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-07-09 16:48:59,883 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:48:59,883 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:48:59,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:48:59,884 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:48:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:48:59,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1506747048, now seen corresponding path program 1 times [2021-07-09 16:48:59,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:48:59,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069805734] [2021-07-09 16:48:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:48:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:49:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:49:00,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:49:00,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069805734] [2021-07-09 16:49:00,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069805734] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:49:00,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:49:00,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:49:00,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296256550] [2021-07-09 16:49:00,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:49:00,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:49:00,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:49:00,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:49:00,023 INFO L87 Difference]: Start difference. First operand 611 states and 1468 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:49:00,172 INFO L93 Difference]: Finished difference Result 713 states and 1680 transitions. [2021-07-09 16:49:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:49:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-07-09 16:49:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:49:00,175 INFO L225 Difference]: With dead ends: 713 [2021-07-09 16:49:00,175 INFO L226 Difference]: Without dead ends: 333 [2021-07-09 16:49:00,175 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:49:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-07-09 16:49:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2021-07-09 16:49:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 332 states have (on average 2.213855421686747) internal successors, (735), 332 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 735 transitions. [2021-07-09 16:49:00,183 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 735 transitions. Word has length 44 [2021-07-09 16:49:00,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:49:00,184 INFO L482 AbstractCegarLoop]: Abstraction has 333 states and 735 transitions. [2021-07-09 16:49:00,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 735 transitions. [2021-07-09 16:49:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 16:49:00,185 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:49:00,185 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:49:00,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:49:00,185 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:49:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:49:00,186 INFO L82 PathProgramCache]: Analyzing trace with hash 890323134, now seen corresponding path program 1 times [2021-07-09 16:49:00,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:49:00,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951419299] [2021-07-09 16:49:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:49:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:49:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:49:00,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:49:00,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951419299] [2021-07-09 16:49:00,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951419299] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:49:00,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:49:00,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:49:00,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296279415] [2021-07-09 16:49:00,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:49:00,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:49:00,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:49:00,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:49:00,342 INFO L87 Difference]: Start difference. First operand 333 states and 735 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:49:00,429 INFO L93 Difference]: Finished difference Result 330 states and 707 transitions. [2021-07-09 16:49:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:49:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-07-09 16:49:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:49:00,432 INFO L225 Difference]: With dead ends: 330 [2021-07-09 16:49:00,433 INFO L226 Difference]: Without dead ends: 258 [2021-07-09 16:49:00,433 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 92.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:49:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-07-09 16:49:00,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-07-09 16:49:00,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 2.1011673151750974) internal successors, (540), 257 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 540 transitions. [2021-07-09 16:49:00,440 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 540 transitions. Word has length 45 [2021-07-09 16:49:00,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:49:00,440 INFO L482 AbstractCegarLoop]: Abstraction has 258 states and 540 transitions. [2021-07-09 16:49:00,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 540 transitions. [2021-07-09 16:49:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 16:49:00,441 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:49:00,441 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:49:00,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:49:00,442 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:49:00,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:49:00,443 INFO L82 PathProgramCache]: Analyzing trace with hash -126043307, now seen corresponding path program 1 times [2021-07-09 16:49:00,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:49:00,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803704473] [2021-07-09 16:49:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:49:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:49:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:49:00,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:49:00,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803704473] [2021-07-09 16:49:00,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803704473] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:49:00,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:49:00,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:49:00,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834813579] [2021-07-09 16:49:00,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:49:00,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:49:00,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:49:00,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:49:00,578 INFO L87 Difference]: Start difference. First operand 258 states and 540 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:49:00,649 INFO L93 Difference]: Finished difference Result 159 states and 309 transitions. [2021-07-09 16:49:00,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:49:00,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-07-09 16:49:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:49:00,654 INFO L225 Difference]: With dead ends: 159 [2021-07-09 16:49:00,655 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:49:00,655 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 89.9ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:49:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:49:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:49:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:49:00,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-07-09 16:49:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:49:00,656 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:49:00,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:49:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:49:00,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:49:00,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:49:00,659 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:49:00,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:49:00 BasicIcfg [2021-07-09 16:49:00,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:49:00,663 INFO L168 Benchmark]: Toolchain (without parser) took 3641.25 ms. Allocated memory was 196.1 MB in the beginning and 235.9 MB in the end (delta: 39.8 MB). Free memory was 159.2 MB in the beginning and 90.6 MB in the end (delta: 68.6 MB). Peak memory consumption was 108.3 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,663 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 196.1 MB. Free memory was 177.5 MB in the beginning and 177.4 MB in the end (delta: 105.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:49:00,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.35 ms. Allocated memory is still 196.1 MB. Free memory was 158.9 MB in the beginning and 169.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.28 ms. Allocated memory is still 196.1 MB. Free memory was 169.2 MB in the beginning and 167.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,666 INFO L168 Benchmark]: Boogie Preprocessor took 34.64 ms. Allocated memory is still 196.1 MB. Free memory was 167.5 MB in the beginning and 166.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,668 INFO L168 Benchmark]: RCFGBuilder took 500.26 ms. Allocated memory is still 196.1 MB. Free memory was 166.0 MB in the beginning and 145.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,669 INFO L168 Benchmark]: TraceAbstraction took 2574.33 ms. Allocated memory was 196.1 MB in the beginning and 235.9 MB in the end (delta: 39.8 MB). Free memory was 145.0 MB in the beginning and 90.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 95.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:49:00,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 196.1 MB. Free memory was 177.5 MB in the beginning and 177.4 MB in the end (delta: 105.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 475.35 ms. Allocated memory is still 196.1 MB. Free memory was 158.9 MB in the beginning and 169.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.28 ms. Allocated memory is still 196.1 MB. Free memory was 169.2 MB in the beginning and 167.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.64 ms. Allocated memory is still 196.1 MB. Free memory was 167.5 MB in the beginning and 166.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 500.26 ms. Allocated memory is still 196.1 MB. Free memory was 166.0 MB in the beginning and 145.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2574.33 ms. Allocated memory was 196.1 MB in the beginning and 235.9 MB in the end (delta: 39.8 MB). Free memory was 145.0 MB in the beginning and 90.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 95.1 MB. Max. memory is 8.0 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 5 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2463.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 38.2ms, AutomataDifference: 1069.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 81.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 363 SDtfs, 538 SDslu, 1238 SDs, 0 SdLazy, 157 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 904.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=804occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 132.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 240 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.3ms SsaConstructionTime, 186.9ms SatisfiabilityAnalysisTime, 732.9ms InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...